Many years of underwater experience

According to the product instruction graphic

Open-heel foot pocket provides the optimal foot position for swimming

fin type and wetsuit thickness

plastic and mesh Dimensions Approx

C4 Carbon - Wolverine Black Silicone Freediving Fins buoy accessories Many years of underwater experienceC4 Wolverine Black Silicone Freediving Training Fins The C4 Wolverine Black is a compact silicone training fin designed for freedivers who want to improve technique, leg engagement and finning mechanics without always using full length carbon fins. Built for dynamic apnea, pool training and freediving technique work, the Wolverine gives you a shorter blade with a serious training feel. The soft silicone construction keeps the fin comfortable and