The Ninja Series offers high end quality features, exceptional durability and lasting value. Featuring UltraFlex neoprene for freedom of moment, DL Fluidflex Firewall insulation, internal Ultraflex taped seams and water tight double super seal neck closure. Features: Ultraflex sleeves, entry, top shoulder, side panel, and low legs for max flexibility Internal ultra flex taped seams throughout most of the suit for a better seal F.U.Z.E. Closure (Front Upper Zip Entry) Strategic Seamless Paddle Zones Double Super Seal Neck External Key Pocket with Loop Hand-Cuff Stitch Sleeve Anchor Krypto Knee Padz Triple Blindstitched and Glued seams in sleeves for maximum flexibility DL fluid flex firewall chest for enhanced durability Dl Fluidflex Firewall thigh and butt for additional warmth Ultraflex sleeves, entry, top shoulder, side panel and low legs for max flexibility