Underwear and exercise and what has to be changed afterwards

Short answer: Change your underwear straight after training. Damp fabric against the skin in the hour afterwards is where most skin problems start, not during the workout itself, when you are moving and air circulates.

The hour after is the critical one

During training you move and air circulates around your body. Afterwards you sit still in damp clothing, in the car, on the bus or at the computer, and that is when problems begin. The skin softens from the moisture, and the warmth encourages irritation. A quick change removes most of the risk. See bamboo underwear for women.

Why damp fabric causes trouble

When sweat stays against the skin, it becomes more vulnerable to friction. At the same time odour and irritation thrive in the warm, damp environment. This applies especially to the groin, under the breasts and between the thighs, where air struggles to reach. The longer you wait to change, the worse it usually gets.

The material during training

Bamboo viscose moves moisture away from the skin, making a session more comfortable at low and moderate intensity. That covers yoga, walks, pilates and calmer strength training. The fabric is soft and sits close without rubbing. For long, hard sessions with heavy sweating, a technical fabric is often better. See bamboo activewear for women.

Longer legs against chafing

Chafing between the thighs is the most common training problem, especially when running, cycling and on long walks. Longer legs or under shorts remove it, because fabric sits between the thighs instead of skin. Choose a length that stays in place as you move, so it does not ride up. See bamboo under shorts.

Pack a change bag

The easiest habit is to keep a set of dry underwear in your gym bag. That way you can change in the locker room, even if you do not have time to shower. Bring a spare top too if you sweat a lot on your upper body. It takes a few minutes and makes the trip home far more comfortable.

Training at home

When you train at home, it is tempting to stay in your workout clothes for the rest of the morning. But that is exactly the situation where the skin suffers most. Change as soon as you finish, even if you will shower a little later. A dry layer in the meantime makes a difference.

Wash straight away or hang to dry

Sweat must not dry into a crumpled heap in your bag. Hang the clothing to dry until it is washed, so the odour does not set in. Wash at 40 degrees with a mild detergent and skip fabric softener, which can reduce how well the fabric moves moisture. Read more about washing and care.

When the skin reacts

If you still get redness, itching or a rash after training, let the skin breathe and keep the area dry. If it does not clear up after a few days, or gets worse, talk to your doctor. Clothing can prevent a lot, but it is not a treatment for skin that is already irritated.

In short

Change straight after training and keep a dry set in your bag. Use bamboo for calmer sessions and a technical fabric for long, hard ones. Longer legs or under shorts solve chafing between the thighs. Hang used clothing to dry until it is washed. That way you avoid most of the usual problems.

Frequently asked questions

When should you change after training?

Straight away. Damp clothing against the skin afterwards is where most problems start, because you are sitting still and air no longer circulates around your body.

Can you train in bamboo underwear?

At low and moderate intensity, yes, for example yoga, walks and calmer strength training. With heavy, prolonged sweating, technical polyester dries faster and is the better choice.