If you're looking for the lightest and stretchiest high-performance short sleeve wetsuit, this is it. The Rip Curl E-Bomb 2mm Short Sleeve Zip Free Wetsuit uses the latest E6 Neoprene technology: the best material available. The neck has a glide skin collar for ease of entry, which is a nice companion to the zipless design. Stress point internal taping prevents water leakage so you stay warmer longer.