Gill Men's Short Arm Wetsuit 4604. Features: Thermal. Durable. Glued and blind stitched to create a waterproof seam which means less water ingress and increased insulation. In addition, if the thread breaks, the seam will not unravel. Ultra tough small diamond reinforcement from lower thigh to ankle on front. Additional rubberized knee reinforcement. Fabric: 3mm nylon faced neoprene. 4mm fine mesh neoprene chest and back panels. 3mm Innospan® ultra stretch side panels. 3mm small diamond neoprene reinforcement. Glideskin neoprene collar.