SDS WILL ALWAYS MATCH OR BEAT ANY GENUINE OFFER !

Tusa Imprex Fins

The IMPREX fin blade itself is made of distinct materials. The outside ribs are made from stiff material and between the ribs you'll find softer, more pliable material. The middle ribs are more compliant than the outer ribs, allowing the fin to effectively channel the water while you swim, similar to the whip-like motions of the dolphin.