I bought this for baby swimming, but I'm selling it because the size was too small. I'm also selling the hat together because my baby started to dislike it and stopped using it. This is a set of a little ducks patterned swim sweat suit with diaper function and a matching hat. 【Size】 ・Swimsuit: L size (6-14 months) ・Hat: S size (0-18 months) 【Number of times used】 ・Swimsuit: 2 times ・Hat: 5 times We do not have any pets or smokers.