Disney Store Baymax Big Hero 6 Boy Swimsuit Rash Guard Sword Shirt Trunks, 5/6. Get your little superhero ready for the beach or swimming pool with this Disney Store Baymax Big Hero 6 Boy Swimsuit Set. The set includes a rash guard shirt and trunks in a multi-color Baymax pattern. Made with lightweight polyester material, this set is perfect for swimming and features an elastic waist and short sleeves. The set is available in size 5/6 and is perfect for recreational activities. This is perfect for those learning how to swim! This was used lightly by my son as this is a back up for his swimming lessons. There are some wear due to being stored and kept in the swim bag. Please see photos for more details on the condition.