The breathable women's LENZ vest with two heating elements in the kidney and back area brings maximum comfort as well as mobility thanks to 4-way stretch and highly elastic seams. For its minimal thickness fits under clothing. Thanks to minimum volume it perfectly disperses moisture and dries out again quickly. The vest is waterproof and windproof. This package also includes LENZ lithium pack rcB 1800 batteries. Heated vest for women from LENZ is new on the market. It contains two heating elements - in the area of the kidneys and back and is very elastic, so it brings maximum comfort as well as mobility. Due to its thickness, it fits under the top layer of clothing. In case of excessive sweating, the moisture dissipates perfectly and is quickly dried. It is wind and water resistant and with fine fleece material inserted in the collar area. It contains an inner pocket and is machine washable at a maximum temperature of 30 C. The LENZ rcB 1800 lithium batteries can warm the vest for up to 11 hours. Light lithium batteries are suitable for LENZ heated products: Socks Vests Gloves Heat bandage LED system You can control the power of heating (3 levels) directly on the batteries or remotely through the LENZ application on your smartphone. The LENZ application is available on these links: App store Google play Batterie life: Product Level 1 Level 2 Level 3 Socks 16 - 20 9 - 11 5,5 - 6,5 Vests 9 - 11 5 - 6 3 - 3,5 Heat bandage 9 - 11 5 - 6 3 - 3,5 Gloves 9 - 11 5 - 6 3 - 3,5 Led system 20 - 60 Values are given in hours Package includes: 1x heated LENZ vest 2x rechargeable lithium battery rcB 1800 1x USB charger 100-240 VAC 1x USB cable with charging indication Download manual here