2XU"s R series now features Yamamoto"s latest neoprene technology. Together with propriety features from 2XU including Concave Water Entrapment Zones (CWEZ) on the forearm, Roll bar, Floating Zip Panels and Velocity Strakes, the R:3 is truly world class. Added performance specs include 1.5mm Underarm/Shoulder Paneling for maximum flexibility, a 4.5mm Front Buoyancy Panel and two year warranty. 2XU"s proprietary Roll bar buoyancy panel will improve your core buoyancy and improve your hip and body position for more efficient and faster swim times. Finally, as in all 2XU Tri Wetsuits, there is the floating Zipper panel anchoring the zip in a flexible material for enhanced freedom of movement, zipper durability, and extra distance per stroke while swimming. With a price point of a mid-level suit, the 2XU R:3 represents exceptional value.