◆ Bartle IC101S Ice Craft Peltier Vest Set ◆ Brand new, only opened for photos. This vest features a cooling function to efficiently cool the body. It's the perfect item for hot workplaces and outdoor activities. • The Peltier fan unit cools to "-18°C (strong) / -12°C (weak)" in a 35°C environment. Sway mode (60 seconds ON / 13 seconds OFF) efficiently cools the body. • The compact battery (5,000 mAh / 7.3 V, approx. 200g) provides approximately 3.5 hours of cooling at -18°C and a maximum airflow of 85 L per second for 30 minutes. • Power stretch material and six attachment holes (neck, back, armpits) allow for concentrated cooling on desired areas. • Unisex: Fits both men and women, available in FREE/XL sizes. • Set includes: Vest body, compact battery, Peltier fan unit x 3, fan cable, USB-C charging cable, instruction manual/warranty. • Material specifications: Power mesh (75% elongation). Outer fabric: 88% nylon, 12% polyurethane; Separate fabric (collar mesh): 92% polyester, 8% polyurethane; Pocket: 100% polyester. 【Recommended Usage Scenes】 • Heatstroke prevention in workplaces • Outdoor activities, sports観戦, general leisure • Widely applicable to situations requiring heat対策 ※ Always use with the dedicated fan/battery for this product. Combining with other company's products may cause malfunctions or accidents.