The Mares Razor Pro Spearfishing Angled-Blade Full Foot Fins are great or long dives and swim in currents. The variable thickness of the blade allows it to bend and curve as you kick, providing flexibility and performance from the foot pocket to the blade tip. The specially designed blade channels and side ribs help to push water flow toward the V-tip, increasing thrust and decreasing slipping. Designed to be worn with a neoprene sock, the foot pocket delivers the perfect amount of power kick with reduced effort. The extra thickness on the instep and arch tensioners convey the maximum amount of energy produced to the blade, yet still provide complete comfort. Tapered elastomer and techno-polymer construction for performance, agility and durability V-tip prevents slipping while swimming 22-degree angle for ease in kicking