Swedish manufacturer Waterproof is known for making wetsuits and drysuits for bone-chilling Scandinavian waters. The 3.5-millimeter W3 harnesses those same qualities, but this time, in a tropical wetsuit. Like its heavy-weight siblings, the W3 offers a gender-specific cut for a precise anatomical fit. Wave-flex panels in the back and in the pre-bent arms and legs create enhanced flexibility and freedom of movement. The W3 features a back zipper for easy donning and a front-gusseted neck zipper for increased comfort at the surface.