Material: Bio-based Phase Change Material;
Slim Fit: Comes with 2 adjustable buckles;
Long-lasting Cooling: Constant cooling 4-6 hours;
Maximum Chest Circumference: 120 cm;
Weight: 1.3 kg per piece;
Temperature: 24℃(75°F) / 26℃(79°F) Available;
Size: Unisex(One size fits most);
Features: Pullover-style vests can easily be cleaned or sterilized. Environmentally friendly and pollution-free. Widely used in outdoor or indoor high-heat and high-humidity environments.