Leather Drivers Insulated Work Gloves. Select Grade Grain Deerskin Palm, Split Leather Back. Fleece Lined and Keystone thumb. Deerskin is naturally soft and has exceptional durability! Offers all day comfort with less hand fatigue. The 3555 series features; select grade deer skin, split deerskin back, red fleece lining, shirred elastic back, rolled leather hem, and keystone thumb pattern.