wear on tread.
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From the inside out—200g of Primaloft Bio™ insulation and B-DRY waterproofing—the Sphinx Pull-On is ready for ice-laden mountain towns. Featuring waterproof oiled nubuck, a water-resistant medial zipper, recycled components, and a Vibram Arctic Grip A.T. sole made of Vibram XS Trek. *This style runs small. Please order up a half size.