Zamberlan 638 Baltoro LH RR

Bedroom-slipper light and instantly comfortable
638 Baltoro LH RR


Membrane No membrane
Men's Sizes Start 8


Men's Sizes End 14
Men's Weight 3 lbs, 9 oz


Take Montrail’s running-shoe DNA and give it up-armored construction, and you get this go-fast hybrid. “It’s bedroom-slipper light and instantly comfortable, thanks to the great-fitting meshy upper, with good cushion, ankle stability, and underfoot support,” says a NOLS instructor who wore it on a two-week trip in Montana’s Absarokas, while carrying a 30-pound pack over long miles, steep terrain, snowfields, and talus. The sole’s toothy, in-cut lugs give it plenty of traction on packed dirt trails.

Webbing lace guides are easy to tighten without pressure points. Testers praised the midsole’s springy-yet-protective layers of EVA and TPU*, and they loved the built-in debris protection. “The midcut neoprene collar is soft and snug,” reports a tester, “and, combined with the gusseted tongue, kept out all detritus.” But beware of wet rock, she warns. “I slipped on steep, slick slabs.”

Bonus: A progressively harder midsole from heel to pinky toe supports the outer edge of the foot to prevent ankle roll. Fit runs wide. $135; 1 lb. 12 oz.; m’s 7-15, w’s 5-11The 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.