Wells Lamont 5127L Work Gloves with Palomino Grain Pigskin, Knit Wrist, 100-gram 3M Thinsulate Insulation, Large - Grain pigskin leather palm with poly/ cotton twill back. Fully wrapped fleece lining insulated with our 100 gram Thermofill for flexible warmth. Wing thumb provides added flexibility. Leather palm designs are the workhorse of gloves for the construction trades, farming & ranching, and all heavy duty needs.