Back Zip Wetsuit for Men. Features include: Fabric: Nylon elastane blend fabric, Neoprene Foam: StretchFlight neoprene, FreeMax super stretch neoprene for great performance & durability, Thermal Smoothie durable textured neoprene on front and back panels; retains heat and blocks wind, With 24% less CO2 emissions per wetsuit, Limestone-derivated eco-friendly neoprene made from scrap rubber tires and Bluesign certified, Exterior Seam Details: GBS [glued and blind stitched] seams for maximum flexibility and minimal water entry external seam, Thickness: 403 mm thickness, Neck: Mock neck, Sleeves: Long sleeves, Entry: Back zip entry, Glue: Aqua Glue eco-friendly lamination..