top of page



• Double Heel™ increases downhill breaking and promotes fluid strides, reducing muscle fatigue
• Ergonomic Last wraps the foot allowing for a precise and comfortable fit for all-day wear
• Rubber Guard™ Shell Construction and Internal PU Inserts offer high-cushion and an overall lighter boot
• 3D Flex Evo™ Directional Joint for better support and increased ankle mobility
• Heel gaiter with integrated puller for an easy and precise fit
• Vibram® Mont Outsole with Impact Brake System™ Lugs excels on technical terrain
• Compatible with various non-automatic and semi-automatic crampons. Crampon compatibility is NOT ensured, and boot-crampon compatibility needs to be inspected

  • Features

    The Spire GTX is perfect for hikers who want a light duty hiking boot for day trips in variable to rugged terrain, and for backpackers who seek a versatile and waterproof boot that breathes well and supports lighter loads.


    • Durable abrasion resistant mesh upper provides protection while Nano Cell 2.0 structure provides maximum breathability

    • Nano Cell 2.0 Technology works with Gore-Tex® Surround™ aeration channels within the footbed and midsole

    • STB control system inegrates Gore-Tex® Surround™ ventilation outlets and provides a comfortable, snug fitting, and stable boot

    • Vibram® XS Trek with Impact Brake System™ sole provides traction and grip

  • Product Information

    ITEM: 21Y
    SIZES: 38 - 48 (half sizes)
    WEIGHT: 22.5oz / 640g
    LAST: Aequilibrium • Medium
    UPPER: Nubuck Leather / PU-TECH Light Mudguard / Lace Locks / Synthetic integrated tongue with hidden lacing / TPU heel & toe caps
    LINING: Gore-Tex® Performance Comfort
    INSOLE: Hybrid Carbon-Nylon® Weave
    MIDSOLE: High-Cushion PU Inserts / Rubber Guard™ Side Wall / TPU Insert For Rear Crampon Attachment
    SOLE: Vibram® Mont Rubber Compound with Impact Brake System™

bottom of page