Description: Designed to use its buoyancy to relieve the swimmer's legs, the Aquaspeed WAVE eight allows you to focus completely on your upper body training. Held between the thighs, the WAVE eight helps to maintain the correct position and movement of the arms during swimming, increase the endurance and strength of the arms, and train the correct way to breathe while swimming. Eight WAVE Aquaspeed is a product of the highest quality made of four layers of dense, very durable EVA foam guaranteeing high buoyancy.