The Definition 3mm offers a level of warmth and comfort any warm-water diver will love. It is built with SCUBAPRO’s Body Map System, a manufacturing method that uses a 3D cut, special tailoring and material inserts to create a suit that fits like a glove, provides extra stretch where it's needed most, and offers excellent warmth, comfort and durability. Proven N2S (Nylon 2 Sides) construction offers the perfect level of warmth and comfort for warm-water diving.