The blade features raised side reinforcing bars that provide strength and spring to the blade but also help to contain and control the water as it flows down the length of the blade. The blade itself is made using two materials, a more rigid plastic with ridges to control the flex of the blade and a flexible rubber that allows the bladde to form a U shape to catch and channel the water. Vents just below the foot pocket help to reduce stress on the ankle and provide a more efficient kick.
The foot has a wide fit to accommodate thick neoprene boots or drysuit boots. Vent / drain holes at the end and underneath the foot pocket allow excess water to drain after use and also helps to eliminate a vaccum build up within the pocket that hinders fin removal. Rubber ridges on the underside of the foot pocket offer addtional traction on wet surfaces.