Milwaukee M12 HBWP-0 (M) 12v Heated Hybrid Puffer Vest Size Medium 4933464371 You\'ll never be cold while you work again with this M12 HBWP-0 Heated Hybrid Puffer Vest from Milwaukee. Powered by M12™ REDLITHIUM™ battery technology, the hybrid puffer vest uses carbon fibre heating elements to create and distribute heat to the chest and back.  Supplied as body only - batteries and chargers sold separately.  FEATURES A one-touch LED controller allows the user to select from 3 heat settings, delivering ideal heat for any environment Superior run time – up to 6 hours of heat on a single battery charge (2.0Ah, sold separately) The Ripstop Polyester provides a lightweight design that can be used as an outer-shell or as a mid-layer (100% Polyester outer and inner shell) Water and wind resistant - provides comfort and durability in harsh environments Machine washable and dryable Reinforced high-wear zones protect from abrasion and tears M12™ battery holder - concealed battery pocket for minimal user interference Flexible battery system: works with all MILWAUKEE® M12™ batteries SPECIFICATION Voltage: 12v Article Number: 4933464371 Battery Type Required: Li-Ion Material: 100% Polyester Size: Medium