Open heel design with adjustable strap allows you to wear fin socks or diving booties to protect you feet from cold and blisters.
Feature: 
ADJUSTABLE STRAP allows convenient adjustment for proper tightness and easy put on and remove the fins.
OPEN HEEL provide convenience to wear a fin sock or diving booties to protect your feet (you are suggested to choose a bigger size if wear with diving booties).
DRAIN HOLE is to outlet the water in time and streamlined body effectively reduce the water resistance for free exploration underwater.
SUPERIOR TPR constructed, tough but flexible, neither too hard nor too soft for free action in the water.
Specification: 
Material: TPR + PP
Application: Adults / Kids (optional)
Size: S-M / L-XL (optional)
Color: Black / Blue / Red / Yellow (optional)
Weight: 590-945g / 1.3-2.0lb  
Package weight: 600-955g / 1.3-2.1lb
Size chart:
Size      EU     US     Inner length     Total length     Width      Height     
Package List: 
1 * Pair of Diving Fins