Swim cap It's made of a material similar to swimwear, not mesh. I believe the size is free size. My child used it at school. The condition is relatively good, but there may be some yellowing inside due to age. I will black out the name written on the tag with a marker. Please note that I am a private seller, so there may be oversights. Please consider purchasing this used item, which has been stored at home, if you understand.