Wash it with a mild detergent and in cold water. Do not leave it wet and rolled up in a sachet after use. Do not tumble dry and do not dry in direct sunlight. Be aware that a lot of chlorine and salt can ruin the product, make sure you wash it immediately after use. Some tanning oils and sun creams can ruin the materials. Don't iron it.
Roll it up with the colored side facing out. To wash it, spray a disinfectant spray, wipe with a damp cloth and let it air dry. It is advisable to store it rolled up in a dry place, away from sunlight and away from heat sources (such as radiators or the trunk of a car exposed to the sun). It is also advisable to place it inside an envelope to also protect it from dust.
You can wash it in the washing machine up to 30°. It dries quickly. Do not tumble dry and do not dry in direct sunlight. Don't iron it.