Mountaineering Boots

Single boots are lighter and more flexible — ideal for summer climbs on Mount Rainier or moderate alpine routes. Double boots add a removable liner for warmth and faster drying, making them the go-to choice for Denali, Aconcagua, and any expedition involving extreme cold or multi-day glacier travel.

Your heel should stay locked in place, with room in the toe box to wiggle your toes on cold mornings. Too tight and you’ll lose circulation; too loose and you’ll get blisters. Try boots on with climbing socks and test them on an incline if possible — especially before a big climb.

Absolutely. Our double boot rental program is designed for climbers who want expedition-grade performance without the cost or commitment of ownership. Every pair is inspected, sanitized, and fitted by staff who work directly with RMI guides.