Smart Design. Different from a normal wetsuit. Stand-up paddle boarding, kayaking, and canoeing people, love this. With other garments, people that use their arms to paddle get a rash. Brushed lycra interior leaves no rash. We used a Tri-laminate material. The exterior is super soft lycra, polyurethane centre, and a soft fleece inner layer. This allows you to sweat, but it also protects you from wind chill. It’s a lot more forgiving on the shoulder area, longer in the torso, and keeps you warm.