The O’Neill Reactor 2 3/2 mm Back Zip Full Wetsuit is engineered for performance in a value driven package. This wetsuit is the perfect combination of stretch and durability, while its fresh colors and graphics bring you the style that's built to last. Back-zip system provides easy entry and exit and includes a watertight seal. Fluid Foam and Ultraflex technology means it offers the ultimate in stretch and flexibility in a super soft neoprene construction. Double super seal neck is fully adjustable. Wind-resistant suit with Flatloc-stitched breathable seams. Features 3 mm neoprene in the body and 2mm in the arms and legs.