DaFiN Fins Savers are made of premium 2mm neoprene that securely wraps around the fin strap with a Velcro closure. They have a nylon strap that buckles around the front of the ankle helping to keep the user connected to their fins in the heaviest surf conditions.  

Size SM fits DaFiN sizes XXS-XS-SM-MD.   

Size LG fits DaFiN sizes ML-LG-XL-XXL.