COMFORTABLE, DURABLE, FAST AND AFFORDABLE: The XTERRA Volt is the ultimate triathlon wetsuit that is comfortable, durable, fast and affordable. Get maximum flexibility with 3/2/1mm neoprene construction. Front: 3.0mm thick neoprene from neck to ankles Back: 2mm thick neoprene Arms / Shoulders: 1.5mm GKA neoprene Anatomically-Correct Arms/Shoulder Panels: Allows for a natural range of motion in the swim stroke for faster, smoother swimming with less effort Low-Profile Collar: Adds comfort and increased durability, ensuring that the suit stays intact and in place. X-MAX Seam-Seal Technology: Uses a triple layer of glue and double-blind stitching to ensure long-lasting waterproof seams.