HEATRAC® insulation is made of breathable, yet extremely efficient heat-trapping microfibers. Features: Genuine American Black Deer split leather palm.Heatrac® 180gm micro-fiber insulation.Fleece back Specs: Black Deerskin Split Leather Palm Mitten-Gray Fleece Back-Heatrac® Microfiber Insulation-Slip-On Cuff Applications: Heavy Duty Industrial Construction Applications Maintenance Farming Transportation Shipping and Freight Construction: Cut-and-Sewn Cuff: Slip-on Grade: Premium Prop_65: Cancer and Reproductive Harm Case Quantity: 120 Case Length: 46 Case Width: 27 Case Height: 80