Caiman 1354-5 Heatrac Insulated Gloves Gold Pig Grain with Combo Cuff, Large Pigskin palm provides great durability for heavy duty work applications Kontour gloves conform to the natural shape of the human hand and provide proper finger alignment 140 gram palm / 180 gram back Heatrac micro-fiber insulation for ultimate warmth and comfort Kontour Thumb design covers the entire face of keystone thumb which eliminates the seam on wear area for added durability and comfort Water and wind resistant poly back