Key Features
Integrated Heating System: It is the first mountaineering boot with built-in, USB-rechargeable Therm-ic 3D heated insoles that feature three adjustable warmth modes.
Multi-Layer Insulation: The boot combines 18 layers of advanced technology across the gaiter, inner shell, and removable liner.
RECCO Reflector: An integrated RECCO reflector aids search and rescue teams in avalanche or emergency situations.
Materials and Construction
Waterproof Gaiter: The high-volume outer gaiter uses a waterproof HDry membrane, abrasion-resistant PU Tek technology, and sustainable Schoeller fabric.
Warmth Technology: PrimaLoft Gold insulation and WinTherm linings lock in body heat while blocking out sub-zero air.
Removable Liner: The inner boot acts as a warm basecamp slipper when you are resting inside a tent. [1, 2, 3]
Performance and Fit
Weight: Weighs approximately 1,450 grams per half pair for a size 42.
Crampon Compatibility: Fully compatible with automatic and semi-automatic step-in crampons for vertical ice.
Outsole: Features a Vibram Zero Gravity Lite sole that grips slippery snow, ice, and rock.
Lacing: Uses a Fast Lock System and Velcro power straps to prevent pressure points while wearing heavy gloves




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