The Arctic Mitt shell generates heat through absorption of visible and infrared rays from the sun. It also reflects wearers infrared rays back to the hand. With toaster side features, you get the warmth of a mitt and the flexibility of a glove.SHELL: Thermotron Heat Reflective Fabric and Smooth Grain LeatherShield Palm.INSULATION: PrimaloftA(R) 130 with SwanyDry Inner GloveFEATURES: TOASTER Construction, AquaGuard Lock-Down Zipper, Fleece Storm Cuff, Swany SpeedDraw System, Quick Release Strap, Touch Screen Compatible Inner Glove Fingertip and Thumb