Blank T-Shirt Shrinkage Guide: Which Brands Shrink the Most (and How to Account for It)
If you have ever ordered a blank t-shirt in a large, washed it once, and handed it to someone who wears a medium, you already understand the practical cost of ignoring shrinkage. For decorators, merch brands, and wholesale buyers who are building products that need to fit and look right after the customer takes them home and runs them through the laundry, understanding how and why t-shirts shrink — and which blanks shrink more than others — is not an academic exercise. It is a direct input into which blanks you recommend, how you advise clients on sizing, and how you protect your reputation when a finished decorated product ends up smaller than expected after its first wash.
This guide covers the science behind t-shirt shrinkage, the factors that affect how much any given blank will shrink, honest observations on how the major blank brands perform, and practical guidance for decorators and buyers on how to account for shrinkage at every stage of the procurement and decoration process.
Why t-shirts shrink: the science behind it
Understanding why shrinkage happens is the foundation for understanding how to manage it — and it starts with what happens to cotton fibre during the manufacturing process.
The tension and relaxation cycle
Cotton yarn is under significant mechanical tension throughout the spinning, knitting, and finishing processes that turn raw fibre into a finished fabric. The yarn is stretched during spinning to align the fibres, the fabric is stretched during knitting to maintain consistent construction, and the finished fabric is often held under tension during finishing and dyeing processes.
When that tension is released — most dramatically during the first wet wash cycle, when water penetrates the fibre and allows the stretched yarn to relax back toward its natural rested state — the fabric contracts. This contraction is what we experience as shrinkage, and it is a predictable physical consequence of how cotton fabric is produced rather than a manufacturing defect.
The amount of shrinkage that occurs during that first wash depends on how much residual tension remains in the yarn and fabric at the point of sale — which is where the distinction between different construction methods and finishing processes becomes practically important.
Pre-shrinking: what it means and what it does not mean
Most blank apparel brands describe their products as pre-shrunk — a claim that is generally accurate but frequently misunderstood by buyers who take it to mean the garment will not shrink at all after purchase.
Pre-shrinking refers to a manufacturing process in which the finished fabric or garment is mechanically or chemically treated to release a significant portion of the residual tension in the yarn before the garment reaches the consumer. The most common method is compressive shrinkage — a mechanical process in which the fabric is compressed and allowed to relax under controlled conditions — which is where the brand name Sanforized comes from, referring to a specific patented version of this process.
Pre-shrinking significantly reduces the total shrinkage a garment will experience over its life — but it does not eliminate it entirely. Most pre-shrunk garments will still shrink by 2–5% after the first wash, and some will continue to shrink marginally over subsequent washes until the yarn reaches its fully relaxed state. The pre-shrinking process simply means that a significant portion of that total potential shrinkage has already been induced before the garment is sold.
For practical purposes: a pre-shrunk garment that says it will shrink 3–5% is telling you that it has already been treated to remove most of the potential shrinkage, and that the remaining 3–5% is what is left. A garment that is not pre-shrunk might shrink 8–12% or more. Understanding this distinction helps set appropriate expectations with clients who ask why their pre-shrunk shirt still shrank after washing.
Fibre content and its effect on shrinkage
Not all fibres shrink equally, and understanding the relationship between fibre content and shrinkage behaviour is essential for making informed blank selection decisions.
100% cotton is the most prone to shrinkage of the common apparel fibre types. The natural cellular structure of cotton fibre absorbs water readily, which allows the yarn to relax and contract significantly during washing. The degree of shrinkage in 100% cotton garments depends heavily on the yarn construction method — a factor we will cover in detail below.
Polyester does not shrink meaningfully under normal washing conditions. Polyester is a synthetic fibre with a stable molecular structure that is not significantly affected by water absorption. A 100% polyester garment washed under normal conditions will show virtually no dimensional shrinkage. This is one of the practical performance advantages of polyester and polyester-blend blanks in applications where dimensional stability is important.
Cotton-polyester blends exhibit shrinkage behaviour that falls between pure cotton and pure polyester, proportional roughly to the cotton content of the blend. A 50/50 blend will shrink approximately half as much as a comparable 100% cotton construction, and a 60/40 cotton-polyester blend will shrink somewhat more than a 50/50. This is why 50/50 blend blanks like the Gildan G18500 hoodie are often more dimensionally stable than their 100% cotton equivalents.
Ring-spun cotton versus open-end spun cotton is one of the most important distinctions in understanding shrinkage behaviour within the 100% cotton category — and it is a distinction that is not always obvious from the product description alone.
Ring-spun cotton yarn is produced by continuously twisting and thinning the cotton fibres into a strong, smooth, fine yarn. The tighter, more uniform twist of ring-spun yarn means the fibres are more efficiently aligned and there is less residual slack in the yarn structure — which means ring-spun fabrics tend to shrink less than open-end spun fabrics after pre-shrinking, and the shrinkage they do exhibit tends to be more consistent and predictable.
Open-end spun cotton yarn is produced by a faster, more mechanical spinning process that creates a slightly bulkier, less uniform yarn with more air incorporated into the structure. The additional slack in the yarn structure means open-end spun fabrics retain more potential shrinkage after pre-shrinking, and the shrinkage behaviour is somewhat less consistent than ring-spun fabrics.
The practical implication: when two blanks are both described as pre-shrunk but one uses ring-spun cotton and the other uses open-end spun cotton, the ring-spun blank will generally shrink less after the first wash and maintain more consistent sizing over repeated washing.
How the major blank brands perform on shrinkage
With the foundational science established, here is our honest assessment of shrinkage behaviour across the major blank apparel brands available through Fabrik.
Gildan G500 / 5000 Heavy Cotton
Composition: 100% cotton (open-end spun on most colours) Pre-shrunk: Yes Expected shrinkage: 3–5% on first wash, up to 7–8% on some colours without pre-shrinking treatment
The Gildan G500 is the most widely used commodity blank in the North American market and its shrinkage behaviour is well-documented from decades of decorator experience. The open-end spun cotton construction means it retains more residual shrinkage potential than ring-spun alternatives, and in practical terms decorators consistently observe that the G500 shrinks more noticeably on the first wash than the ring-spun Gildan options.
For event and commodity apparel where the garment is sized generously and wash performance is not a primary concern, this level of shrinkage is acceptable and well-understood. For applications where precise post-wash sizing matters — fitted merchandise, garments where the end customer expects consistent sizing after laundering — the G500's open-end spun construction is worth factoring into blank selection.
Decorator note: The G500 tends to shrink more consistently in length than in width on the first wash — the body shortens slightly more than it narrows. For decoration placements that are measured from the collar or hem, accounting for this length shrinkage when positioning artwork is worth considering.
Gildan Softstyle G640
Composition: 100% ring-spun cotton Pre-shrunk: Yes Expected shrinkage: 2–4% on first wash, more consistent than G500
The Gildan Softstyle represents a meaningful step up from the G500 in shrinkage performance as well as hand feel. The ring-spun construction retains less residual shrinkage potential after the pre-shrinking treatment, and decorator experience with this blank consistently shows less first-wash shrinkage and more consistent sizing than the open-end spun G500.
For non-profit and event programs where the G500's shrinkage might create sizing complaints, the Softstyle offers a meaningful improvement without a dramatic price increase. The ring-spun construction also produces more consistent shrinkage behaviour across different colourways — an important consideration since different dye processes can affect shrinkage slightly differently.
Bella Canvas 3001
Composition: 100% Airlume combed and ring-spun cotton (some colours are CVC) Pre-shrunk: Yes Expected shrinkage: 2–3% on first wash, among the most consistent in the category
The Bella Canvas 3001 is one of the best-performing blanks in the category for dimensional stability after washing, and this is directly related to the Airlume combed and ring-spun construction. The combing process removes short fibres and impurities before spinning, and the ring spinning process produces a more uniform, tightly-twisted yarn than either open-end or standard ring-spun processes. The result is a fabric with significantly less residual tension after pre-shrinking, which translates to less first-wash shrinkage and more predictable sizing over the life of the garment.
For premium fashion merch brands where post-wash fit is a core part of the product experience — where the end customer paid $55 for a tee and expects it to fit the same way after ten washes as it did on day one — the Bella Canvas 3001's dimensional stability is a genuine product advantage worth communicating.
Important note on CVC versions: Bella Canvas offers some colourways in CVC (chief value cotton) — a cotton-polyester blend — rather than 100% cotton. CVC colourways will shrink less than the 100% cotton version due to the polyester content. Check the specific colourway specification before advising clients on shrinkage expectations.
Next Level 3600
Composition: 60% combed ring-spun cotton, 40% polyester Pre-shrunk: Yes Expected shrinkage: 1–2% on first wash, one of the most dimensionally stable options
The polyester content in the Next Level 3600 makes it one of the most dimensionally stable t-shirt blanks in the premium fashion category. The 40% polyester resists the water absorption that causes cotton to relax and contract, significantly limiting the total shrinkage the garment can exhibit even on the first wash. For brands building a merch line where consistent sizing across the product life is important, the Next Level 3600's blend composition is a genuine practical advantage over the 100% cotton alternatives.
The trade-off — as discussed in our Bella Canvas 3001 vs Next Level 3600 comparison — is that the polyester content prevents discharge printing and adds dye migration risk for screen printing. But from a pure shrinkage performance standpoint, the 3600 is one of the best-performing blanks in the category.
Comfort Colors 1717
Composition: 100% ring-spun cotton, garment dyed Pre-shrunk: Yes — aggressively, through the garment dye process Expected shrinkage: 1–3% on first wash, exceptionally well pre-shrunk
The Comfort Colors 1717 is one of the most thoroughly pre-shrunk blanks in the wholesale market — not because of a separate pre-shrinking treatment, but because the garment dye process itself is essentially an aggressive pre-shrinking treatment. The finished garment is tumbled through multiple hot water wash and dye cycles during production, which releases virtually all of the residual tension in the yarn before the garment reaches the consumer.
In practice, Comfort Colors garments exhibit some of the most consistent and minimal post-purchase shrinkage of any 100% cotton blank in the market. The extensive hot water processing during garment dyeing has already done most of the work that the consumer's first wash would normally do, leaving very little residual shrinkage potential in the finished garment.
This is worth communicating explicitly to clients who are considering Comfort Colors for the first time and who may be concerned that the 100% cotton construction means problematic shrinkage. The garment dye process is essentially a factory pre-wash, and the sizing stability you get with Comfort Colors is among the best in the 100% cotton category.
Shaka Wear Max Heavyweight Garment Dye (SHGDSS)
Composition: 100% cotton, garment dyed Pre-shrunk: Yes — through the garment dye process Expected shrinkage: 2–4% on first wash
Like Comfort Colors, the Shaka Wear Max Heavyweight undergoes the garment dye process that provides significant pre-shrinking during manufacturing. The heavier fabric weight at approximately 7.5 oz means there is more total fibre mass in the garment — which means slightly more absolute shrinkage is possible even with thorough pre-shrinking, but the dimensional stability is still significantly better than an untreated 100% cotton blank of equivalent weight.
For streetwear brands building in an intentionally oversized silhouette, a modest amount of post-wash shrinkage is often acceptable or even desirable — the garment settling into a slightly more fitted version of its original oversized cut after the first wash is consistent with how premium streetwear consumers expect their heavyweight garments to behave. Communicating this expectation to end customers is straightforward and aligns with the authentic, lived-in positioning of the garment-dyed aesthetic.
Just Like Hero HERO-300
Composition: 100% cotton Pre-shrunk: Yes Expected shrinkage: 3–5% on first wash due to ultra-heavyweight construction
The Just Like Hero HERO-300 at approximately 14 oz is the heaviest blank in the Fabrik catalogue, and the ultra-heavyweight construction means there is more total cotton fibre in the garment that can potentially shrink. Even with pre-shrinking, the sheer mass of fabric in a 14 oz garment means that first-wash shrinkage of 3–5% represents a meaningful dimensional change — more so in absolute terms than the same percentage change in a 4 oz garment, even if the percentage is similar.
For brands building with the HERO-300, size advice to end customers is particularly important. The oversized intentional silhouette of the blank means that some post-wash settling is part of the expected product behaviour, but sizing up one size for buyers who are between sizes is a reasonable precaution for anyone who wants to preserve maximum measurements after the first wash.
ATC Everyday Cotton ATC1000
Composition: 100% ring-spun cotton Pre-shrunk: Yes Expected shrinkage: 2–4% on first wash
The ATC1000 performs comparably to the Gildan Softstyle in shrinkage terms — the ring-spun construction produces more consistent and somewhat lower shrinkage than open-end spun alternatives. For Canadian buyers who choose ATC for its domestic brand positioning, the shrinkage performance is a non-issue relative to comparable ring-spun options from other brands.
Heat, care instructions, and the decorator's role in shrinkage
One aspect of t-shirt shrinkage that is frequently overlooked in buying guides but that is critically important for decorators is the role of the decoration and cure process in triggering additional shrinkage before the garment even reaches the end customer.
Cure temperature and pre-shrinkage in screen printing
Screen-printed plastisol ink requires heat curing — typically at temperatures between 320°F and 330°F (160°C–165°C) — to fully cross-link the ink and achieve durable wash-fastness. This curing temperature is hot enough to trigger additional shrinkage in cotton fabrics, particularly in blanks that were not thoroughly pre-shrunk before decoration.
For decorators who are printing on blanks for the first time and have not established their pre-cure shrinkage expectations for that specific blank, running a sample through the cure process and measuring the garment before and after is a worthwhile step. A blank that shrinks significantly during the cure process — before the end customer has ever washed it — will arrive at its intended destination already smaller than expected, which can create sizing complaints that fall on the decorator even though the root cause is inadequate pre-shrinking at the manufacturing level.
Blanks with thorough pre-shrinking — Comfort Colors, Shaka Wear, well-treated ring-spun options — exhibit minimal additional shrinkage during the cure process because most of the residual tension has already been released. Less thoroughly pre-shrunk blanks may show more significant dimensional change during curing.
DTG pre-treatment and shrinkage
DTG printing requires applying a liquid pre-treatment solution to the garment before printing — a process that involves moisture and sometimes heat pressing to activate the pre-treatment. Both the moisture and the heat pressing can trigger additional shrinkage in cotton blanks that have not been thoroughly pre-shrunk.
For DTG operators printing on blanks with known shrinkage tendencies, pre-pressing the blank before applying pre-treatment — running it through a heat press briefly to allow any remaining residual tension to release before the pre-treatment is applied — is a standard practice that reduces the risk of the pre-treatment process triggering unexpected dimensional changes.
Communicating care instructions to end customers
One of the most practical things a decorator or merch brand can do to reduce shrinkage-related complaints is communicate clear care instructions to the end customer with every decorated garment. The vast majority of post-purchase shrinkage beyond what a well-pre-shrunk blank should exhibit is caused by washing in hot water and drying on high heat — both of which are avoidable with simple instruction.
Including a care card or using the blank's existing care label to communicate wash cold and tumble dry low reduces the practical experience of shrinkage for end customers significantly. A properly cared-for blank that is washed in cold water and dried on low heat will shrink far less over its lifetime than the same blank washed in hot water and dried on high heat.
For premium merch brands where the post-wash experience of the garment is part of the product promise, taking ownership of this communication — including it in packaging, on hang tags, or in the post-purchase confirmation — is a professional touch that reduces complaints and increases customer satisfaction.
Practical guidance: how to account for shrinkage at every stage
At the blank selection stage
Match your blank's shrinkage behaviour to your application. For high-volume event apparel where sizing precision matters less, the G500's slightly higher shrinkage is acceptable and the price advantage is real. For premium fashion merchandise where a customer is paying $55–75 for a tee and expects consistent sizing after washing, the investment in a better pre-shrunk blank — Bella Canvas 3001, Comfort Colors 1717, or a blend like Next Level 3600 — is justified by the reduction in returns, exchanges, and customer complaints.
At the sizing advice stage
For any blank with meaningful shrinkage potential, advising clients and end customers to size up slightly is appropriate — particularly for buyers who are between sizes or who prefer a slightly looser fit. For the G500 and similar open-end spun blanks, a half-size to full-size recommendation for end customers who are on the border between sizes is reasonable. For the better pre-shrunk options, this recommendation is less necessary but still worth mentioning for customers who are very precise about their fit.
For merch brands, publishing post-wash size charts — dimensions measured after the garment has been washed once according to care instructions — rather than or in addition to standard cut-and-sewn dimensions gives end customers the most accurate expectation of what they will actually be wearing. This is a best practice used by the best merch brands and dramatically reduces sizing-related returns.
At the decoration stage
Know the shrinkage profile of every blank you regularly print on. Keep a simple record of how each blank behaves during the cure process, what the typical first-wash shrinkage looks like for each style, and what size recommendations you make for each blank. This institutional knowledge makes you a more credible advisor to your clients and reduces the surprises that create costly complaints and reprints.
For blanks you have not printed before, request samples and run them through your full production process — pre-treatment if DTG, cure if screen printing — before measuring and washing to establish the blank's full production shrinkage profile before committing to a full run.
At the client communication stage
Be proactive with clients about shrinkage expectations for their specific blank. A client who knows that their Gildan G500 event shirts will shrink modestly after the first wash — and who has been advised to wash in cold water and dry on low heat to minimise this — is far less likely to complain than one who experiences the shrinkage without having been warned. Setting accurate expectations upfront is one of the simplest and most effective things a decorator or wholesale buyer can do to improve client satisfaction and reduce post-order problems.
Quick reference: shrinkage comparison across major blanks
| Blank | Composition | Pre-shrunk | Expected first-wash shrinkage | Notes |
|---|---|---|---|---|
| Gildan G500 | 100% cotton (OE spun) | Yes | 3–5% | More variable, shrinks more in length |
| Gildan Softstyle G640 | 100% ring-spun cotton | Yes | 2–4% | More consistent than G500 |
| Bella Canvas 3001 | 100% combed ring-spun | Yes | 2–3% | Among best 100% cotton options |
| Next Level 3600 | 60/40 cotton-poly | Yes | 1–2% | Polyester content limits shrinkage significantly |
| Comfort Colors 1717 | 100% ring-spun, garment dyed | Yes — aggressively | 1–3% | Garment dye process = extensive pre-shrinking |
| Shaka Wear SHGDSS | 100% cotton, garment dyed | Yes — through dye process | 2–4% | Heavier weight means more absolute change |
| Just Like Hero HERO-300 | 100% cotton, heavyweight | Yes | 3–5% | Larger absolute change due to weight |
| ATC1000 | 100% ring-spun cotton | Yes | 2–4% | Comparable to Gildan Softstyle |
Browse blanks by shrinkage profile at Fabrik
All of the blanks covered in this guide are available through Fabrik with Canadian pricing, live inventory, and domestic shipping across Canada. Whether you are looking for the most dimensionally stable option for a premium merch program or the most cost-effective pre-shrunk blank for a high-volume event run, our catalogue covers every shrinkage profile and performance tier.
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