Existing modelThe Zamberlan 638 Baltoro RR features the same rugged construction as the very popular 636 Baffin GT RR, without the Gore-Tex membrane. Leather and Cambrelle lined, the 638 Baltoro RR features Zamberlan's exclusive Vibram 3D sole with rock-forward motion, excellent downhill braking, and wide lugs for easy cleaning. Made from dual-density PU with a TPU stabilizer the Zamberan Vibram 3D sole is easily our most popular. The Hydrobloc, full-grain, single piece, waxed leather uppers offer durability and beauty now and for many years to come. Available in Waxed Chestnut. Hand-crafted in Italy.