This suit has a base of extremely flexible 2mm neoprene that provides great mobility and ensures free movement in the hip area while running. 4 mm panels on the chest and upper thighs offer increased buoyancy and an optimal swim position when swimming with shoes. Glide skin coating provides minimum resistance through water. A front and back zipper offer easy opening while running. With two easily accessible inner pockets for carrying extra equipment. Nylon panels between the legs reduce the frictional damage that could occur when running with the suit on. Extra added nylon loops to easily fasten tow lines and accessories. Comes with a small and effective whistle for security.