How to Wash and Dry Long Sleeve Undershirts Without Shrinkage
By Mens Underwear | Obviously Apparel | Published: 2026-10-13
Category: Dicas e Cuidados
Learn how to wash long sleeve undershirts without shrinkage. Follow our step-by-step guide to prevent undershirt shrinkage and keep sleeves from stretching.
Quick answer
Wash long sleeve undershirts in cold water on a gentle cycle with mild detergent, then dry them flat or on low heat. Avoid hot water and high heat, which cause shrinkage and stretch out sleeves. For best results, hand wash or use a mesh bag and lay flat to dry.
Why long sleeve undershirts shrink and stretch
Shrinkage happens when heat and agitation cause fabric fibers to contract. Long sleeve undershirts made from cotton or cotton blends are especially prone because natural fibers react to hot water and high dryer temperatures. Stretching occurs when wet fabric is hung or pulled, especially at the sleeves and neckline. To prevent both, control temperature and handle the garment gently throughout the wash and dry process.
Choosing the right detergent and cycle
Use a mild, liquid detergent free of bleach and harsh enzymes. Powder detergents can leave residue that stiffens fabric. Select a gentle or delicate cycle with low agitation. If your machine has a hand-wash setting, use it. For extra protection, place the undershirt in a mesh laundry bag to reduce friction against other clothes.
Water temperature and sorting
Always wash in cold water (below 30°C/85°F). Hot water is the leading cause of shrinkage. Sort undershirts separately from heavy items like jeans or towels that can abrade the fabric. Wash with similar lightweight items to minimize twisting and pulling.
Drying methods that prevent shrinkage
The safest way to dry undershirts without shrinking is to lay them flat on a drying rack away from direct heat or sunlight. If you must use a dryer, choose the lowest heat setting and remove the garment while slightly damp. Never hang a wet undershirt by the sleeves or shoulders, as the weight of the water can stretch the fabric.
Step-by-step washing and drying process
- Pre-treat stains and turn inside out: Apply a small amount of mild detergent to any stains and gently rub. Turn the undershirt inside out to protect the outer surface and reduce pilling. Checkpoint: Never use bleach or harsh stain removers, which weaken fibers.
- Wash in cold water on a gentle cycle: Set your washing machine to cold water (below 30°C/85°F) and a delicate or hand-wash cycle. Add a mild liquid detergent. If possible, place the undershirt in a mesh bag. Common mistake: Using hot water or a normal cycle causes shrinkage and stretching.
- Skip the spin cycle or use low spin: High-speed spinning can twist and stretch the fabric. If your machine allows, set spin to low or skip it entirely and gently press water out by hand. Checkpoint: The undershirt should be damp, not dripping wet, before drying.
- Dry flat or on low heat: Lay the undershirt flat on a clean towel or drying rack, reshaping it to its original dimensions. If using a dryer, choose the lowest heat setting and remove while slightly damp. Common mistake: Hanging wet undershirts by the sleeves or shoulders stretches them out.
- Store folded, not hung: Once completely dry, fold the undershirt and store it in a drawer. Hanging can cause shoulder bumps and stretch the neckline over time. Final check: Your undershirt should retain its original length and sleeve shape.
Product care details
- Deep V Neck Long Sleeve Undershirt: Luxurious MicroModal/Lycra blend – 4 way stretch to move with your body This blend resists shrinkage better than pure cotton when washed in cold water and dried flat.
- Crew Neck Long Sleeve Undershirt: Printed care label – no irritation No scratchy tag means you can wash without worrying about label degradation or skin discomfort.
