The DynaMIG Traditional Welding Gloves are made of white top grain & grey split cowhide to offer dynamic protection which is ideal for MIG and Flux-core welding applications. Heat Resistance: Two Layer Fleece Cotton Internal Liner, Premium Grain & Split Cowhide Exterior, 4 Cuff for Wrist Protection. Comfort: Soft Fleece Cotton Liner, Flexible Grain Cowhide Palm, Seamless Index Finger, Elastic Top Hand For Optimal Fit. Durability: Premium Grain & Split Cowhide Exterior, Grain Leather Thumb Strap Reinforcement, 3 Ply Kevlar Stitching. Size Medium