Cooling Performance: Features a powerful cooling mode of minus 18 degrees Celsius and a weaker cooling mode of 12 degrees Celsius, allowing for two-stage temperature adjustment. Stretch Material: Uses power mesh material (88% nylon, 12% polyurethane) for excellent elasticity and a comfortable fit. BURTLE's Ice Craft Vest, equipped with innovative cooling technology, establishes a new standard for heat countermeasures. It features a Peltier fan unit capable of cooling down to an astonishing minus 18 degrees Celsius, and effectively manages temperature with a total of six attachment points around the neck and back. The power stretch material (88% nylon, 12% polyurethane) provides both outstanding fit and ease of movement. In addition to the two-stage cooling adjustment (strong: -18 degrees Celsius, weak: -12 degrees Celsius), it also features a sway mode function that provides a comfortable cooling cycle. The compact battery allows for up to 3.5 hours of continuous use and achieves a powerful airflow of 85 liters per second. With its stylish design based on black and accented with a red zipper, it combines practicality and design. Everything is included, so you can use it immediately as a cooling Peltier vest. The size is free size. *No price reductions will be made. *Due to being a special sale item, only initial defects (within 8 days of product arrival) will be covered.