The heated vest for men guarantees a warm back at the touch of a button. The integrated heating element is not noticeably connected to the lithium packs, which are located under the chest ribs. The sleeveless vest has a slim cut to guarantee direct heat transfer. It is worn as the bottom layer. The breathable material is quick drying and abrasion resistant. In warmer temperatures, the heat vest 1.0 men can be worn without the lithium packs for sports, work and leisure. It folds up small and has a small pack size. The Lenz Body heat system protects the body from cooling in the critical areas. The lithium pack rcB 1200 can be used to operate Lenz heated socks, heated vest, heated bandage, heated gloves, heated pants and the LED system. The batteries are easily fixed by push buttons. The compact lithium packs warm the body where the body is particularly vulnerable to cold. The heating power can be controlled directly on the lithium pack or by means of the free smartphone app. Features: Heatable sleeveless vest for men Integrated heating elements in the back area at the level of the kidneys Heating vest fits under any existing clothing system Lithium packs sit in the inner vest pockets under the breast ribs Can be combined with all Lenz lithium packs Quick-drying, wind-repellent, breathable and abrasion-resistant material Fleece insert in collar Small pack size and small foldable Machine washable at 30°C Batteries Features: Rechargeable Up to 14 hours constant heat Connection of the batteries to the respective product by means of push buttons Heating power controllable with the free smartphone app or directly on the lithium pack Small, light (85 grams) and compact (8.5 cm x 5.5 cm x 1 cm) Material: Outer fabric: 84 % polyamide 16 % spandex Inner fabric: 100 % polyester Package Contents: 1 heat vest 1.0 men 2 lithium pack rcB 1200 (rechargeable) 1 USB charging cable with charging indicator Lenz Heat Vest 1.0 for Men with rcB 1200 Batteries