Brand: ROCKBROS Product: Wind Jacket Material: 100% Polyamide Weight: 475 g Color: Black Sizes: M / L / XL / XXL / XXXL / 4XL Heating System Four Independent Heating Zones: Four separate heating areas inside the jacket provide continuous, uniform warmth to the front and core body areas. Three Precise Temperature Levels: Three adjustable settings: High: approx. 50–60 °C Medium: approx. 40–50 °C Low: approx. 30–40 °C One-button operation for easy switching based on your needs. Rapid Heating Technology: Graphite inner lining reflects heat, combined with bamboo charcoal fiber heating wires for quick heat absorption and efficient heat retention. Long Battery Life: With 8000 mAh Battery: Up to approx. 2.8 hours (High setting) Up to approx. 7 hours (Low setting) Material: Warmth & Protection Graphite Polypropylene Inner Lining: Rapid heat storage, machine washable, soft and skin-friendly, easy to care for. Water-Repellent Outer Layer: Splash-resistant – effectively repels splashes and light rain. Breathable & Windproof: Breathable material wicks away excess heat and prevents overheating. Practical Design Easy Cleaning: The entire jacket (including the heating system) is machine washable. The USB port has a waterproof cover. Before washing: close all zippers and allow to dry completely before next use. Simple Operation: USB-C port for power supply via a power bank (not included, 5 V/2 A). Ideal for flexible outdoor use. Outdoor Features: Extended, windproof sleeve cuffs Elastic, windproof hem Inside and outside pockets Jacket is foldable and can be packed into its rear pocket for maximum portability.