Ice Water Cooling Vest Specifications Materials Outer fabric: 100% Nylon Lining: 100% Polyester Side fabric: 80% Nylon, 20% Polyurethane Cooling section: PEVA coated film, foamed polyethylene, sponge Color 19. Black Size XXL (Fits LL to 4L) List Price: ¥25,000 Applicable Seasons Spring/Summer Pump Output 7.4V 150mA (Max) Flow Rate 320-370ml/min (Max) Features ● Slim design! With a thickness of approximately 8cm, it is easy to wear under fan-equipped clothing or full harnesses. ● Washable! Equipped with a waterproof motor, it can be washed whole without the hassle of disassembly. ● -20°C perceived temperature! Cold water adheres to the body, providing a perceived temperature of -20°C and excellent cooling effect. ● Excellent durability! Using Cordura fabric achieves lightweight yet high strength essential for workwear. ● 3-layer cooling sheet! Excellent cooling performance with a 3-layer structure of PEVA coated film, foamed polyethylene, and sponge. Additionally, a pocket for inserting ice packs further enhances cooling power. ● Long-awaited big size Adjustable buckle for a perfect fit.