MIlwaukee 2373-3X M12 Heated Gray Sweatshirt Kit XXXL 3XL Durable cotton exterior with waffle-weave thermal lining provides comfortable warmth and styleAdvanced carbon fiber heating elements provide adjustable heat to core body areas Advanced carbon fiber heating elements provide adjustable heat to core body areas Two large lower front side pockets keep hands warm and hold various accessories Charge cell phones and other electronic devices with the integrated USB port on the battery holster Comes with battery and charger