A favourite hoodie that shrinks in the wash isn't unlucky — it's the predictable result of one wrong decision in the laundry routine. Cotton fibres are designed to relax and contract under heat. Mistreat them once, and the sleeves rise an inch, the body bunches up, and the hoodie that fit perfectly yesterday won't tomorrow. The good news: shrinking is completely preventable, and even partially reversible, if you follow the right steps.
Quick answer: To wash a hoodie without shrinking it, turn it inside out, wash on a gentle or delicates cycle at 30°C (cold) using a mild detergent, never use the tumble dryer, and instead lay the hoodie flat on a clean towel to dry naturally. Cotton hoodies shrink because of heat and mechanical agitation — both happen most aggressively in the tumble dryer and in hot water washes.
In this guide, we'll walk you through the science of why hoodies shrink, the 7-step method to wash any hoodie safely, fabric-specific care for cotton, fleece, and blends, and what to do if your hoodie has already shrunk.
Why Hoodies Shrink in the Wash (The Quick Science)
Hoodies — especially cotton ones — shrink because of three things happening at once:
- Heat relaxes the cotton fibres, causing them to contract back toward their original, untensioned length. The hotter the water (or dryer), the more contraction.
- Mechanical agitation (the tumbling action in a washer or dryer) physically twists and rubs the fibres, accelerating that contraction.
- Residual shrinkage is built into most cotton garments. Even "pre-shrunk" cotton typically has 3–7% shrinkage potential remaining in the fibres — released the first time the garment hits hot water and a dryer.
The takeaway: heat is the enemy. Reduce heat in both washing and drying, and you eliminate 90% of the shrinkage risk.
The 7-Step Method to Wash a Hoodie Without Shrinking
Follow these steps in order, every time, and your hoodies will keep their shape for years.
Step 1: Read the Care Label First
Every reputable hoodie comes with a care label sewn into the inside seam. Read it before the first wash. It will tell you the maximum safe temperature, whether the garment can be tumble dried, and whether it can be ironed.
Most premium UK hoodies — including all hoodies in the Lexanber collection — come with explicit instructions to machine wash on a low temperature and avoid the tumble dryer to preserve fit and fabric integrity.
Step 2: Turn the Hoodie Inside Out
Before putting it in the wash, turn the hoodie inside out. This does three things:
- Protects the outer surface from pilling caused by friction with other clothes
- Preserves any prints, embroidery, or graphics on the front
- Reduces direct exposure of the outer fibres to detergent
This single step doubles the lifespan of any printed or embroidered hoodie.
Step 3: Wash Cold — 30°C (or Lower)
Set your washing machine to 30°C maximum — and lower (cold-water cycles around 20°C) if the option is available. Cold washing achieves three things at once:
- Minimises cotton shrinkage
- Preserves colours (especially black hoodies, which fade faster in hot water)
- Saves energy and money
Hot washes (40°C and above) are the single biggest cause of hoodie shrinkage. They also accelerate colour fade and fabric pilling.
Step 4: Use a Gentle or Delicates Cycle
The cycle setting controls how much physical agitation your hoodie experiences. Choose:
- Delicates or wool/silk cycle — the gentlest option, ideal for premium and fleece-lined hoodies
- Hand wash cycle — even gentler, good for graphic hoodies
- Regular cottons cycle — only if your hoodie is robust 100% cotton and you accept slight shape change over time
Avoid heavy-duty or fast-spin cycles — high-speed spinning stretches and stresses the fabric.
Step 5: Choose a Mild Liquid Detergent
Powder detergents and harsh "biological" formulas can be aggressive on cotton fibres and printed graphics. Use:
- A mild liquid detergent — ideally a non-biological or eco-friendly formula
- Half the recommended dose — most people use too much, which leaves residue in the fibres
- No fabric softener on hoodies with brushed-back fleece — softener coats the fibres and reduces the fleece's natural softness over time
For organic cotton hoodies, choose a detergent labelled as suitable for organic or sensitive fabrics.
Step 6: Never Use the Tumble Dryer
This is the most important step in the entire guide. The tumble dryer is the single biggest cause of hoodie shrinkage — it combines high heat with constant mechanical tumbling, which is exactly the combination that causes maximum shrinkage in cotton fibres.
Even one cycle in a hot tumble dryer can shrink a 100% cotton hoodie by 5–8%. That's enough to take a size L hoodie down to a snug M.
If you must use a dryer for any reason, set it to No Heat / Air Dry only — and accept that fabric quality will degrade faster than air drying.
Step 7: Lay Flat to Dry (or Hang Carefully)
The premium method to dry a hoodie:
- After washing, gently press out excess water — don't wring or twist the hoodie
- Lay it flat on a clean, dry towel
- Gently shape it back to its original dimensions (smooth the body, align the sleeves)
- Let it air-dry for 12–24 hours, turning it over once halfway
If you don't have space to lay flat, hang the hoodie on a broad, padded hanger by the body (never by the hood) to prevent the shoulders stretching out. Avoid hanging in direct sunlight — UV light fades colours, especially blacks and bright dyes.
Fabric-Specific Care: What Your Hoodie Is Made Of Matters
Not all hoodies are made the same. The fabric blend changes the care strategy.
100% Cotton Hoodies
The shrinkage-prone category. 100% cotton hoodies — like the Lexanber Unisex Oversized Overhead Hoodie, which has a 100% cotton outer shell — need the most careful washing.
- Wash temperature: 30°C or lower, always
- Cycle: Delicates only
- Dry: Lay flat, never tumble dry
- Iron: Only on low if absolutely needed
100% cotton hoodies in heavy GSM weights (like the Lexanber Unisex Oversized) are particularly worth caring for properly — the heavyweight construction is what makes them last 3+ years.
Cotton-Polyester Blends
Hoodies blended with polyester (commonly 70% cotton / 30% polyester) are far more forgiving. The polyester component doesn't shrink and helps stabilise the cotton fibres around it. Lexanber's slim-fit hoodies for men, for example, use a 72% cotton / 28% polyester blend that's engineered for shape retention.
- Wash temperature: 30°C — still cool, but slight margin for error
- Cycle: Gentle cycle
- Dry: Hang or lay flat (still avoid tumble dryer for best longevity)
- Iron: Low heat only — polyester can melt at high temperatures
Cotton + Elastane Blends
Hoodies with a small percentage of elastane (Lycra) — typically 2–5% — like the Lexanber Women's Slim Fit Overhead Hoodie — need extra care because elastane degrades faster under heat.
- Wash temperature: 30°C or lower — never higher
- Cycle: Delicates / wool
- Dry: Lay flat only — heat permanently damages elastane elasticity
- Iron: Avoid if possible; low heat only if necessary
Fleece-Lined Hoodies
The brushed-back fleece interior on premium UK winter hoodies is fragile and prone to flattening with poor care.
- Wash temperature: 30°C maximum
- Cycle: Delicates
- Detergent: Mild liquid only — never fabric softener (it coats and flattens the fleece)
- Dry: Lay flat. Once dry, gently rub the inside fleece with your hand to "fluff" the fibres back to soft.
Organic Cotton Hoodies
Organic cotton — especially GOTS-certified — is typically less chemically treated than conventional cotton, which means slightly higher residual shrinkage potential. Treat organic cotton hoodies with the most conservative care.
- Wash temperature: Cold cycle (20–30°C) only
- Cycle: Delicates
- Detergent: Eco-friendly, mild liquid detergent designed for organic fabrics
- Dry: Always lay flat to air-dry
6 Common Mistakes That Cause Hoodie Shrinkage
After everything above, here's the shortlist of mistakes to avoid:
- Washing on 40°C or hotter — instant shrinkage, especially on first wash
- Using the tumble dryer on high heat — the single biggest shrinkage cause
- Mixing whites and colours at high temperature — colour bleed plus shrinkage
- Wringing the hoodie to remove water — permanently distorts the shape
- Hanging by the hood — stretches the neckline and shoulders
- Using too much detergent — leaves residue, makes the fabric stiff, accelerates wear
If you've made one of these mistakes, don't panic — the next section covers recovery.
What to Do If Your Hoodie Has Already Shrunk
If your hoodie has come out of the wash smaller than it went in, you can usually recover 60–90% of the lost size with this technique:
- Fill a sink or basin with cool water (room temperature) and add 2 tablespoons of hair conditioner or baby shampoo. Mix until dissolved.
- Submerge the shrunken hoodie and let it soak for 30 minutes. The conditioner relaxes the cotton fibres.
- Don't rinse. Gently squeeze out excess water without wringing.
- Lay flat on a towel and stretch the hoodie gently back to its original dimensions — pull the sleeves outward, smooth the body downward, reshape the shoulders.
- Place a second towel on top and weight the corners down with books or bottles to hold the stretched shape.
- Let air-dry for 24 hours in the stretched position.
This works best on 100% cotton and cotton blends. It's less effective on heavily shrunk fleece-lined or elastane-blend hoodies, but it's worth attempting before writing the hoodie off.
Frequently Asked Questions
What temperature should I wash a hoodie at?
The safest temperature to wash any hoodie is 30°C or lower. Hot water (40°C and above) causes the cotton fibres to contract and shrink, especially during the first few washes. Cold-water cycles (around 20°C) are even safer and preserve colour and fabric integrity for longer.
Can you put a hoodie in the dryer?
You can technically put a hoodie in the dryer, but you should not — especially on a heat setting. The tumble dryer is the single biggest cause of hoodie shrinkage because it combines high heat with constant agitation. If you must use a dryer, use the No Heat or Air Dry setting only. Air drying flat is always the safer choice.
How often should I wash a hoodie?
Most hoodies only need to be washed every 5 to 10 wears, depending on activity level. Washing too frequently accelerates fabric wear, fades colours, and increases shrinkage risk. Spot-clean small stains between washes, and air the hoodie out after each wear instead of laundering immediately.
Does cold water really stop a hoodie from shrinking?
Yes. Cold water (20–30°C) minimises the heat-induced contraction of cotton fibres that causes shrinkage. Combined with a delicates cycle and air drying, cold washing eliminates the vast majority of shrinkage risk for any hoodie, including 100% cotton and fleece-lined varieties.
Will my hoodie shrink if I hang dry it?
No — air drying, whether flat or hanging, will not shrink a hoodie. Shrinkage requires heat, which air drying does not provide. The only caveat is that hanging a hoodie by the hood or by thin hangers can cause the shoulders to stretch out, which changes the fit. Hang on a broad padded hanger by the body, or lay flat on a towel, for best results.
Can a shrunken hoodie be saved?
Yes, in most cases. Soaking a shrunken cotton hoodie in a cool water and hair-conditioner solution for 30 minutes, then gently stretching it back to shape on a flat towel and letting it air-dry, will usually recover 60–90% of the lost size. The technique works best on 100% cotton and cotton-poly blends, and is less effective on hoodies with elastane.
How do I keep my black hoodie from fading?
Black hoodies fade because of three things: hot water, harsh detergent, and direct sunlight. To preserve a black hoodie, always wash inside-out in cold water (30°C or below) with a mild liquid detergent designed for dark colours, avoid the tumble dryer, and dry away from direct sunlight. Use a colour-protecting detergent every 3rd or 4th wash.
Can I iron a hoodie?
Yes, but only on the lowest heat setting and only if the care label allows it. Iron a hoodie inside-out to protect any prints or embroidery, and avoid ironing directly over the hood drawstrings or metal eyelets. For most premium hoodies, ironing is unnecessary if the hoodie is laid flat to dry properly.
Final Word
Hoodie care isn't complicated — it's three rules in disguise: wash cold, skip the tumble dryer, dry flat. Follow those, and a premium £40–£60 hoodie will look and fit as well in year three as it did on day one. Ignore them, and even the best-made hoodie will be a snug souvenir within six months.
Looking for a hoodie built to survive proper care for years? Browse the Lexanber hoodie collection — premium 100% organic cotton and cotton-blend hoodies, slim-fit and oversized options, fleece-lined for British winters, sizes XS to XXL, with free UK shipping and free returns.
If you also want your premium hoodie to look premium when it leaves the house, read our companion guide: How to Style Hoodies for Everyday Wear (Men & Women)