our 4/3mm Prologue Back-Zip Wetsuit offers superior performance and durability, with thicker StretchFlight 2 neoprene at the chest for extra warmth and FreeMax Super Stretch at the arms and legs for maximum mobility. With Thermal Smoothie core panels for added heat and GBS seams for superior flexibility, this suit is a perfect choice for colder water conditions. Bonus? The construction of this suit results in a lower carbon footprint, so you can feel good in it and feel good about it. Featured here in the Black colorway. Features Fabric: Nylon elastane blend fabric Neoprene Foam: FreeMax super stretch neoprene for great performance & durability. StretchFlight 2 neoprene for increased warmth and comfort without sacrificing flexibility 24% less CO2 emissions per wetsuit Limestone-derived neoprene made from scrap rubber tires and Bluesign® certified Thermal smoothie: Front and back panels Seams: GBS (glued and blind stitched) seams for maximum flexibility and minimal water entry Neck: Mock neck Sleeves: Long sleeve Entry: Back zip entry system Glue: Aqua Glue lamination