The Grand Sierra by Becker Brands Ragg Wool Glomitt features fleece lining, suede leather palm patch, velcro pop-over, and Thinsulate Insulation. Thinsulation Insulation is made up of high-quality microfibers that work by trapping air between your hands and the frostiness of the outside air. Ragg wool is a material that traps air for extreme warmth and wicks away moisture naturally. When combining these two materials, you get the perfect glomitts for those who spend a lot of time outside during the winter season.