In order to get the most out of your sauna session, it's important to dress appropriately. Whether you choose to go nude or wear a swimsuit, you need to be comfortable while in the sauna. In addition, you need to bring a towel for sitting on the benches, and be sure to remove any metal jewelry or piercings as these can burn your skin and release bacteria into the air. You should also shower before you enter the sauna to prevent the buildup of sweat on your body.
The best clothing to wear in sauna is cotton. It is breathable and allows the skin to breathe properly, which helps to avoid odors and keeps the sweat wicking away from the body. Tight-fitting clothing can restrict airflow in the sauna and cause discomfort. It's a good idea to wear loose cotton clothing or a light cotton wrap while in the sauna. You should also avoid wearing workout clothes made of PVC fabric as these can melt in high temperatures and release toxic fumes into the air.
Some people like to wear a robe while in the sauna to maintain privacy and comfort. If you choose to do this, be sure the robe is made of cotton and not synthetic material as these materials do not allow the skin to breathe. Many public or hotel saunas provide robes for their guests, but you can always bring your own to ensure it is clean. It's also a good idea to bring some shower sandals or flip-flops to wear in the sauna to keep your feet warm and protect them from hot surfaces.