Speedo Big Boys' Uv 50+ Boom Swim Tee Rashguard 100%PolyesterJersey Imported UV block the burn with UPF 50+ protective fabric Loose fit swim tee for greater long wearing comfort and freedom of movement M = 10/12; L = 14/16; XL = 18/20 Great for any activity in or around the water Made by Speedo, the world's #1 swim brand UV block the burn with UPF 50 plus protective fabric^Loose fit swim tee for greater long wearing comfort and freedom of movement^M = 10/12, L = 14/16, XL = 18/20^Great for any activity in or around the water^Made by Speedo, the world's number 1 swim brand