Elastomax 3: The lightest most flexible neoprene ever 30% more flexible than E2. Ultralite: Durable and flexible neoprene. Hydro-Loc Collar: Adjustable soft seal neck for increased comfort and water seal. Critically Taped: Junctions and stress areas add strength and durability to seams. Seamless Shoulder Panels: For unrestricted flexibility whilst paddling. 100% Flatlocked: All unsealed suits feature 100% flatlocked seams for extra comfort.