The Syncro Wetsuit from Roxy is warm light and flexible, it features a thermal lining on back panel that transforms body heat into infrared energy to generate and maintain warmth.Product Information:• Product Code: ERJW103055-XKKK• 100% StretchFlight x2 limestone-derived neoprene - warm, light & flexible• Thermal Smoothie on back panel - retains heat and blocks wind• WarmFlight® x1 Far-Infrared thermal lining on back panel transforms body heat into infrared energy to generate & maintain warmth• GBS (glued and blind stitched) seams for maximum flexibility and minimal water entry• Chest zip entry system with PK® #8 plastic zip• Supratex knee pads, durable, lightweight & flexible• Suitable for suggested water temperatures of 11°C - 14°C / 51°F - 58°F• Drainage holes• Weight: 1.13 kg• 83% Nylon, 17% Elastane