Additional/Replacement Basecamp Base Layer Battery, 10000 mAh USB Hats We recommend referring to the

We recommend referring to the size chart on the product page to ensure a proper fit

structured front panels

5 hours of runtime and includes a rechargeable ARB-L18-1100 battery

The HM75R features a versatile lighting system with a spotlight and floodlight white output

Operates in temperatures from -35°C/-95°F to 45°C/113°F

Additional/Replacement Basecamp Base Layer Battery, 10000 mAh USB Hats We recommend referring to theGive yourself up to an extra 8 hours of battery life with the 5v, 10,000mAh Gobi Heat lithium polymer base layer battery. Uses a standard USB C port. Works with the following products: Men's Basecamp shirts and pantsWomen's Basecamp shirts and pants