Profile Design's Blitz is a great value and perfect for training and racing. It's made of Yamamoto #39 neoprene for excellent comfort, flexibility and durability. The neoprene is coated with SCS (Super Composite Skin) on the arms and torso and upper legs to make the suit super slick and reduce friction in the water. For excellent flexibility, the body features a multi-neoprene construction with super-stretch on the shoulders and upper arms to facilitate swimming. There's also a reverse zipper for speedy on/off, and which also prevents accidental opening in the water. Other sweet features include Arm Propeller, which offers more power in the pull phase of your strokes, a one-piece shoulder and a chafe-free neoprene collar for maximum comfort.