Often imitated but never duplicated, Xcel's Infiniti X-Zip is the original pioneering front entry fullsuit design. A short water-resistant Interlock zipper on the front upper chest flap keeps the main zipper off your spine and allows for greater flexibility throughout the suit. The front outer zipper flap has contoured SmoothSkin shoulder hems with built-in elastic for a flexible, secure fit. A protective snap lock closes over and protects the zipper pull. The inner crossover neck entry design features overlapping separate inside front and back neck panels that allow for wide, easy, step-in-through-the-neck entry. The X-Zip features Xcel's top of the line seam constructions, with UltraStretch Fusion Seams in the upper body. These high-density, stretch seams use our exclusive inner Fusion Seam taping to maximize flexibility and keep more water out. The inner wrists feature a Fusion Seal, while inner ankles feature geometric-patterned Taitex ankle seals, which prevent flushing in the arms and legs. UltraStretch Pressure Bonded taped seams are found in the lower body, where more durability is required. All seams in the X-Zip are double glued, blindstitched, and curved to match natural body contours, maximizing strength and stretch. The front and back chest feature wind-resistant Texture Skin for warmth. Contoured 4-way stretch DuraFlex knee panels add durable flexibility.