Oceanic Manta Ray Open Heel Dive Fins Oceanic - Blue, XL

With Advanced Materials As Strong As Bone, Manta Ray Provides Maximum Power, Speed And Efficiency While Remaining Lightweight And Durable. Power-X System By Replicating The Motion Of The Foot'S Tendons And Joints, Revolutionary Material Optimizes Propulsion By Flexing During The Downstroke And Releasing Stored Energy Prior To The Upstroke. Power Channel The Flexible Material Simulates The Skin'S Elasticity By Directing Water Flow Off The Back Of The Blade For Increased Thrust. Soft Pad Heel Strap Newly Designed Heel Strap Has A Comfortable And Ergonomic Finger Loop That Allows The Fin To Be Easily Removed And Replaced, Even With Thick Neoprene Gloves. Easy Buckle Adjustment (Eba) Our Unique Easy Buckle Adjustment System Allows For More Than 2 (5 Cm) Of Precise Adjustments For A Custom Fit Without Tools.