The Avanti Superchannel OH is the latest evolution in Channel Thrust Technology, designed for the diver who wants the perfect blend of power and efficiency in one fin. Minimized leg fatigue. Features: Bungee strap. Anatomical open heel foot pocket. 3 channel design for added propulsion. Size: Small. Color: Blue.Colour: BlueMade in: ItalyAge Group: AdultHeel Fins: Open HeelType of Fins: DivingSelect Size: 38Select Size: 40Select Size: SSelect Size: MSize: 38-40Original Colour by Producer: Blue