Peltier cooling vest with mesh material to cool the neck and shoulders. - Brand: XEBEC - Model: Peltier Cooling Vest - Size: S is rare and sold out due to limited production. Please see the last table for each size. Because it is stretch mesh, it is breathable, but it has a fit to press the cooling surface against the body, so it is preferred by slim men and women. - Features: Cools the neck and shoulders - Material: Mesh, so it is easy to wash. - Accessories: Cooling device Purchased August 2025, used for 2 weeks in a warehouse. Disinfected and washed, stored. No operational problems. Includes a 20000mAh battery. Lasts 4-5 hours on medium output. Thank you for viewing.