Orca Wetsuit Size Chart The new 3.8 provides the perfect option for a triathlete or swimmer who needs all the extra buoyancy that they can have. With the addition of the Core Lateral Stabiliser, extended Exolift and Aerodome and more flexible arms and shoulders, the new 3.8 provides all the essentials to get you through the water quicker. Features: - Eco-cell technology expands across the entire lower front panel, providing maximum buoyancy and raising your legs to an elevated horizontal position - Aerodrome technology gives you extra buoyancy for optimal swim positioning - Core lateral stabilizer provides support in the abdomen to avoid weaving and reinforce your core. - 1.5mm 40 cell Yamamoto neoprene on the shoulders provides extra flexibility and maximum buoyancy - Comfortable, anti-chafe collar lining - 39-cell Yamamoto lower leg panel with SCS coating reduces drag while swimming. Hydrolite panels make the wetsuit easier to remove for faster transition times