M 8/10 / 30-31 32-33 L 12/14 / 31-32 33-34 XL 16 / 32-33 34-35 XXL 18 / 33-34 35-36 size chartplease allow 0.4-0.8 differs due to manual measurement Swim Top Sizing Guide S M L XL XXL 32C 32D 34A 34B 34C 34D 36A 36B 36C 36D 38A 38B 38D 40B 40C 40D 40A 40B 40C 40D