Dual Control Heating – Independently power front, back, or both zones with 4 heat zones. Targeted warmth in knees, belly and lower back Up to 9 Hours of Heat – Reliable, all-day comfort with 3 heat settings. 3 Heat Settings – Low, medium, or high for each zone Sleek Black Design and Machine Washable - Easy and convenient once the battery is removed! 10,000 mAh Battery + USB Charging Cable Included – Reliable rechargeable power. Lightweight and Flexible Fit – Base layer comfort for layering Heat where you need it most. The Gobi Heat FlexCore Women’s Heated Base Layer Pants use dual control technology so you can heat the front, the back, or both zones—each with independent low, medium, or high settings. With four heat zones targeting your knees, belly and lower back, FlexCore delivers customized warmth for any cold-weather adventure. Designed with a slim, flexible fit, these base layer pants are perfect under ski gear, hiking layers, or everyday outerwear. Powered by the included 10,000 mAh rechargeable battery, you’ll get up to 9 hours of warmth on a single charge—no bulk, just comfort.