SPEEDO Optimus Training Long Fins (XXL Only)

SPEEDO Optimus Training Fins 100% rubber, natural flow of a flutter kick, angled blade shape creates balanced propulsion while maintaining kicking and stroke tempo, soft orthopedic foot pockets for comfortable extended use. Shoe Size Equivalents XXXS 11-13 Kids XXS 1-3 Kids XS 3-4 S 5-6 M 7-8 L 8-9 XL 10-11 XXL 12-13