The Xcel Drylock 4/3mm Men's Fullsuit is Xcel's most advanced cold-water wetsuit, engineered with Drylock technology for superior warmth and water resistance in demanding surf conditions. Key Features: Drylock Technology — Proprietary sealed seam construction locks out water for maximum warmth retention in cold conditions 4/3mm Neoprene — 4mm torso and 3mm limbs deliver optimal thermal protection without sacrificing paddle mobility Infrared Inner Lining — Thermo Lite infrared lining reflects body heat back to keep core temperature stable Chest Zip Entry — Streamlined chest zip minimizes water entry points and creates a cleaner seal than traditional back-zip designs Glued & Blind-Stitched Seams — GBS seam construction prevents cold water flushing at every panel junction Stretch Neoprene Panels — Ultra-stretch limestone neoprene at shoulders and underarms allows full range of motion during paddling Built for surfers who push into cold water lineups, the Drylock 4/3mm handles Pacific Northwest winters, Northern California mornings, and any water between 48–58°F with confidence. Where lesser suits flush and fatigue you, the Drylock's sealed construction keeps you in the water longer and performing at your best. Sizing & Fit: Xcel wetsuits run true to size with a performance-close fit. Refer to Xcel's size chart using height and weight; if between sizes, size up for comfort or down for a tighter thermal seal. Care: Rinse thoroughly with fresh water after each session. Hand wash with wetsuit shampoo as needed. Hang dry inside-out away from direct sunlight. Do not machine wash or tumble dry.