By eliminating the failures common to conventional fin straps, halcyon spring straps free you from the risk and hassle of lost fins and broken straps. not only that but spring straps are much easier than standard rubber straps to don and doff. this makes entering and exiting the water easier and safer. they are secure and comfortable to wear, creating a snug fit to the diver’s foot. springs and pins made from stainless steel.

Halcyon No Longer Sells this item 

• XL (12?/30.5 cm spring) what we have left of this amazing product.