The Olympia GT 4150 Gore-Tex All Season Gloves are made from a deluxe supple, drum dyed cowhide leather, and a Gore-Tex glove insert that is waterproof, windproof, and breathable. It’s lightweight, all-season thermolite insulation provides warmth without making the gloves bulky or cumbersome. For a more customized fit, the Olympia GT 4150 gloves have the Olympia 2X Auto Cuff (with one side that tightens the fit of the glove, and the other side that loosens the fit). The All Season Gloves have flex knuckles for protection and dexterity, and reflective piping for nighttime visibility. There is also a goggle wiper on the thumb for quick and easy removal of condensation on goggles. For more information on the Olympia GT 4150 Gore-Tex All Season Gloves, Olympia gear, and other winter riding gloves, check out our website: CompetitionAccessories.com!