Features and Benefits: Advanced Heat Technology System with Quick Heat Function: 3X faster heat up time; Battery Pass-Thru: Position the battery in the Front or Back Pocket to improve comfort; Up to (8) hours of run-time with the M12 REDLITHIUM CP2.0 Compact Battery Pack on low setting; Heating Zones: Chest, Back; One-touch LED controller with (3) heat settings per zone (High, Medium, Low); 4 Total Pockets: (2) front snap pockets, (1) interior zip pocket, (1) low-profile battery pass-thru pocket for front or back placement; Re-engineered AXIS Ripstop Polyester Fabric and High-Wear Zone Reinforcement protects from abrasion and prevents tears from spreading; Wind and water resistant with DWR coating; 100% Polyester insulation keeps heat in, doesn't add bulk; Adjustable waist to improve fit and comfort; Washer and dryer safe; 100% Polyester;