The Fundamental is the staple of the BZ line and is made for the most advanced rider

The outer ring on the gel is enlarged to provide an improved seal

sharp-edged rails for responsive slashing turns

Each so gorgeous and unique that it will turn heads on any beach around the world

and see why it is the most functional for high performance maneuvers

Yucca Fins Standard Short Blade Swimfins - Black Size:S The Fundamental is the stapleOur standard flexing fin designed for all conditions and surfing. Medium flexing pocket with a stiff blade provides a nice smooth flex with maximum thrust and comfort. Designed by Sean Starky. FLEX INDEX Standard Flex Thrust Feel Soft Flex Thrust Feel Super Flex Thrust Feel Ultra Soft Flex Thrust Feel SHOE SIZE TO FIN SIZE GUIDE SHORTBLADE SIZE MEN WOMEN XS 3 4 5 6 S 5 6 7 8 M 7 8 9 10 ML 9 10 11 12 L 10 11 12 13 XL 11 12 13 14 XXL 13 14 14 15 XXXL 15