Arcteryx Lithic Glove Palm and fingers are built using burly, highly hydrophobic, N333p-X 3L Gore-Tex fabric with tricot technology and TPU laminated reinforcements Highly breathable N70p Gore-Tex on back of the hand with fully taped seams Uses TriDex patterning technology, that is a three-lobe finger pattern that maps the thumn and each finger separately according the hand's natural grasping motion, creating exceptional dexterity and breathability The palm and fingertips feature TPU reinforcements instead of leather, and because of the hydrophobic properties of TPU, these seal out water, wind, and snow from sneaking in 133 g PrimaLoft Silver Insulation and 100 g PrimaLoft Gold Insulation Eco (back of hand)