O'Neill Wetsuits Youth Mutant 5/4/3 mm w/Hood Fluid Seam Weld Full Suit Should fit snug, but not too tight Contortionist Seamless Shoulder Design for ease of entry 5/4/3mm 100% Super Stretch Neoprene: 50% UltraFlex DS, 50% FluidFlex (tm) Exterior Fluid Seam Weld Construction to lock out water from coming inside the suit Suit comes with Hood and Neck Closure, Integrated Key Pocket Strategic Seamless Paddle Zone, Krypto Knee Padz UltraFlex Firewall Interior Chest and Lumbar