Vasque - Caldera GTX (Mushroom) - Women's: This boot keeps the pace up on strenuous day hikes over rough terrain, and even carries loads on short backpacking trips. Features GORE-TEX technology in which external water is repelled while internal moisture is allowed to pass through the membrane, keeping feet dry and comfortable. 2.0mm Waterproof Nubuck Leather plus Contoured Phylon upper for superior comfort and support. TPU Plate. Vibram Contact outsole offers the perfect blend of flexibility, traction and support for dayhikes or light overnights. Nylon lining plus padded collar for addition comfort and support. DryTech footbed. Gusseted Tongue. TecTuff Rand. Features Vasque's Integration Technology (I.T.) System in which each technological element is biomechanically designed to maximize performance. Shoe weighs 2 lb 3 oz.