A T-shirt that does not chafe the nipples on a run

Short answer: Chafing at the nipples comes from repeated rubbing against the fabric, especially when it is wet or has rough seams. Choose a soft T-shirt with a fit that lies calmly without flapping, and try it on a short run before you take it on a long one.

Why it chafes

During a run the fabric rubs against the skin thousands of times, and when the shirt gets wet with sweat the rubbing gets worse. The nipples are a sensitive spot with thin skin, so that is where you feel it first. It is a common problem, and it can usually be prevented with a little thought.

The fabric next to the skin

Choose a soft, smooth T-shirt without rough seams or stiff labels that can press. Feel the fabric, and run a finger over the seams on the inside. You can read more about bamboo T-shirts for men, which are soft clothes for everyday life and a calm run.

A fit that does not flap

A T-shirt that is too loose flaps and rubs against the skin with every movement. One that is too tight presses instead. Choose a fit that lies calmly against the body without squeezing, and check that it does not roll up at the waist or slip across the shoulders while you run.

Dry clothes chafe less

Damp fabric rubs more than dry, so change into a dry T-shirt before you start if you warmed up in another. After the run, change quickly so the wet shirt does not stay on. On long runs you can keep a dry one in the bag.

A layer underneath

Some runners like a thin layer underneath that takes the rubbing instead of the skin. It can be an undershirt that fits closely and has no rough seams. See the range of bamboo undershirts for men if you want to try an extra layer next to the skin.

Help from plasters and cream

Many runners use sports tape, small plasters or a neutral skin cream to protect the nipples on long runs. Try it in training, so you know how your skin reacts and that the plaster stays on when you sweat. Never use anything new on race day.

When the cold comes in

In winter you need an extra layer on top, and then it is not only the T-shirt that rubs. A soft sweatshirt over it gives warmth after the run and is pleasant when you stand and cool down. Read more about bamboo sweat for men if you want to add a layer for afterwards.

Washing, care and skin

Wash the T-shirt according to the care label, usually at a low temperature and without fabric softener, which can leave a film on the fabric. Rinse soap out well so the skin is not irritated. If the skin is sore, red or keeps hurting, talk to your doctor before you run again.

Frequently asked questions

Why does it chafe most when I sweat?

Wet fabric is stiffer and rubs more against the skin than dry. When sweat collects in the shirt the rubbing gets worse, especially over the thin skin at the nipples.

Does taping or using plasters help?

Many runners benefit from it, but try it in training first so you know it stays on and does not irritate the skin. Never use anything new in a race.

What do I do if the skin is sore after a run?

Let the skin rest, keep it clean, and wait to run until it has healed. If it persists or the skin looks inflamed, talk to your doctor.