size - US 10 1/2 (Based on the measurements, the insole size is 28–28.5 cm)



In excellent condition for its age; there are minor stains and darkening of the material on the inner liner boot and plastic elements, consistent with the age of the item — please see the last two photos.




Koflach Arctis Vario boots are legendary double-shell plastic boots designed for high-altitude mountaineering, winter trekking, and expeditions in harsh, cold environments.

Primary Purpose and Features:

• Mountaineering and High-Altitude Ascents: Engineered for low temperatures (effective in conditions down to approximately -20°C to -30°C or lower).
• "Double Boot" Construction: Feature a rigid outer plastic shell made from lightweight, cold-resistant Pebax material, paired with a removable, insulated inner liner. The liner can be taken out to dry inside a tent or sleeping bag.
• Vario Joint: A specialized hinge mechanism in the ankle area that allows for more natural forward, backward, and lateral movement while walking, making the rigid plastic boot significantly more comfortable during long treks.
• Crampon Compatibility: Thanks to their rigid plastic construction and Vibram outsole (e.g., the Dhaulagiri model), they are perfectly suited for use with mountaineering crampons on ice and steep slopes.
• Backcountry and Mountain Trekking: Historically used for demanding mountain treks involving heavy backpacks, and even in "retro-style" ski touring or backcountry skiing when paired with compatible bindings.