"Same minimalistic outsole as V-Alpha: 3mm Megagrip compound. Light, thin,and flexible tool, offering essential protection. Allows natural foot movement and offers protection for water activity when going barefoot is not an option. 2mm EVA insole with 2mm perforations through each sole, allowing water to move through the shoe and dry quickly. Snug fit and fast drying synthetic mesh upper, adjustable by two Velcro straps. Distinctive silicone print in the lining increases friction between the skin and shoe, allowing for a more secure fit when water would usually encourage slipping. This style is part of our max feel product philosophy. USAGE : Grip and protection in and around the water for movement on wet rocks, in riverbeds, in canoes, kayaks, and SUP. Excellent for swimming and even triathlon race transitions. Successor to the Signa."