Bamboo T-shirts and shrinkage in the wash
Short answer: Bamboo T-shirts can shrink a little in the wash, especially if they are washed too hot or dried in a tumble dryer. Wash on a gentle cycle at a low temperature and let them air dry, and the size holds best. Always follow the care label.
Why bamboo T-shirts can shrink
Bamboo in clothing is viscose from bamboo, and viscose can react to heat and moisture by contracting. That is why bamboo T-shirts can shrink if they are treated roughly. The reaction varies with brand and knit, so the experience is not the same from style to style.
Wash temperature matters most
High temperature is the most common cause of shrinkage, so stick to a low temperature and a gentle cycle. If in doubt, choose the lowest temperature the label allows. Wash a little more often at low heat rather than rarely at high heat if you want to keep the fit.
Tumble dryer or hanging
The tumble dryer is often worse than the wash itself. Heat and mechanical action can make viscose contract. Hang the T-shirt to dry instead, preferably on a hanger or lying flat so the shape holds. Look at bamboo T-shirts for men if you want to compare.
What to do if it has already shrunk
If a T-shirt has already become a little too small, you can carefully pull it into shape while it is damp and let it dry lying flat. It does not always work, and the result can vary. It is better to prevent it with a low temperature next time.
How to choose a size if you fear shrinkage
If in doubt, go up a size if you use a tumble dryer, or stay with your normal size and air dry. Read the size guide and measure a T-shirt you already wear. The fit can vary between bamboo T-shirts.
The laundry bag and the other things in the machine
Use a laundry bag and avoid washing with heavy things such as jeans or towels, which can wear on the fabric. Light and dark colours should be sorted so the colour does not run. Fill the machine half full so the T-shirt has room to move freely.
Bamboo polos and T-shirts are cared for alike
Polos and T-shirts in bamboo are cared for in much the same way, but always read the label. See, for example, bamboo polos for men if you want a slightly more formal shape. The same gentle wash and air drying help both keep their fit.
The care label applies to your exact T-shirt
Prints, colours and the addition of other fibres can affect how a T-shirt should be washed. Always follow the instruction on the label, even if you have washed another one before. If you also care for bamboo underpants for men, the same principles apply.
Frequently asked questions
Do bamboo T-shirts shrink in the wash?
They can shrink a little, especially at high temperature or in a tumble dryer. Wash gently at a low temperature and let them air dry, and the size holds best.
Can bamboo T-shirts go in the tumble dryer?
It is not recommended, as heat can make viscose contract and lose shape. Hang them to dry and follow the care label for the specific style.
Should I buy one size bigger?
It depends on how you wash. If you air dry, choose your normal size. If you use a tumble dryer, consider going up a size, and always check the size guide.
