O'Neill Men's Dive J-Type 7mm Back Zip Full Wetsuit with Hood Torso: Firewall, Arm/Leg: Ultraflex DS, Hood: Firewall Stitchless Double Fluid Seam Weld, Code Red Zipper, 12-millimeter core insulation J-Type Entry/Closure System, Full Torso Firewall Insulation Envelope 100 percent sealed, D-Tox Kneepads, Glideskin O'Ring Cuffs Jon Barrier, Minimal Seam Design, Super Seal Neck, TFX Torso Flex