Engineered performance comes to you in the value-driven package that is the O'Neill Men's Reactor II 2mm Back Zip Short-Sleeve Spring Wetsuit. Constructed with UltraFlex neoprene and FluidFoam, this suit allows you to move freely in the waves with a stretchy design and soft, plush fit and feel without getting too cold. Then, the seamless paddle zones allow a full range of motion when you're paddling to the line-up, while the wind-resistant SmoothSkin panels help prevent chilly ocean breezes from sapping your warmth. Plus, the Krypto Knee Padz boost durability where you need it, and the back zip entry helps you stay comfortable when on your chest on the board.