Olympus Mons S

$805.38 ~~$1299~~ In stock

Prepare for the most extreme expeditions with the Olympus Mons S, the world’s lightest and most advanced high-altitude boot, weighing in under 1000 grams. Crafted for mountaineers tackling Himalayan ascents and variable temperatures, it offers exceptional insulation, durability, and lightweight comfort. The Core-Wrap™ System ensures superior performance and warmth, while the ultra light expanded EVA Vibram® Olympus tread reduces fatigue. The BOA® Fit System provides a precise fit, and the ultralight gaiter offers reliable weather protection. Defy the elements and ascend with confidence—Olympus Mons S with tech-toe insert: your trusted companion for conquering new heights.

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Customer Reviews (4.6 / 5 · 5 reviews)

Avery T. ★★★★★ Oct 21, 2026

First time wearing a boot this light above 7,000 meters, and the weight difference was immediately noticeable on every step. The sub-1000 gram build made a real difference on the long push to the summit.

Charlotte ★★★★★ Oct 20, 2026

Fourteen hours on the mountain and my feet never felt the cold—the sub-1000g weight made every stride feel almost effortless, and the fit locked in without a single hotspot. Coming from my old clunky pair, this is a game-changer.

Sophia ★★★★★ Oct 19, 2026

Climbing Denali, my feet stayed warm and dry even in -40°F winds, and the BOA lacing system made adjustments quick with thick gloves on. For a boot this light, the stiffness under crampons is surprisingly solid.