Men's Taiss Light Mid GTX Boots

$499.00

Lightweight mid-height mountaineering boot built for steep alpine terrain, glacier travel, and technical objectives.

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The Mammut Men's Taiss Light Mid GTX Boots are built for climbers and mountaineers who want a lighter boot without giving up the support and security needed in alpine terrain. At 550 g, this is Mammut’s lightest crampon-compatible mountaineering boot, designed to balance lightness, durability, and performance for everything from exposed approaches to glacier travel and steep ground.

What stands out here is how the design keeps the boot precise and capable without feeling overbuilt. Vibram Litebase trims weight from the sole while maintaining the grip needed on rock, ice, and snow, and the semi-automatic crampon compatibility gives it real mountaineering range. Details like the asymmetric lacing, mono-tongue construction, and integrated neoprene cuff gaiter make sense once you’re moving through mixed conditions and don’t want your footwear slowing you down.

Materials

  • Material: Microfiber Racing
  • Lining: GORE-TEX Footwear
  • schoeller® softshell material

Construction

  • Mammut Georganic® 3D technology
  • Board lasting
  • 3D heel foam
  • Raised rubber rand
  • Neoprene cuff: Integrated neoprene cuff gaiter for protection in snow and ultimate comfort

Lacing & Fit Features

  • Lace system: Standard lacing
  • 2-zone lacing: individual 2-zone lacing can be adjusted to accommodate different situations
  • Asymmetric lacing: Follows the anatomy of the foot all the way to the tip of the shoe
  • Mono-tongue construction: Greater comfort and reduced pressure points thanks to a tongue that opens only to one side

Outsole & Traction

  • Outsole: Vibram® XS Trek
  • Vibram Litebase
  • Contact Control
  • Vibram

Performance Ratings

  • Waterproofing 6/6
  • Grip 6/6
  • Protection 5/6
  • Lightweight 5/6
  • Cushioning 4/6
  • Stability 4/6

Best For

  • Activities: Hiking, Mountaineering
  • Mountaineering 6/6
  • Approach 5/6
  • Hiking 5/6
  • Trekking 4/6

Specs

  • Product code: 3010-00900
  • Weight (US 9.5): 550 g
  • Flex index: B2
  • Crampon compatibility: Semi-automatic
  • Insulation (tested according to DIN EN ISO 20344): -20
  • Heel drop: 11 mm

Additional Features

  • GORE-TEX
  • PFC-free DWR
  • Easy resoling
  • Fair Wear
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Men's Taiss Light Mid GTX Boots

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For more information view our FAQ page

  • Free shipping on orders over $99 (oversize charges may apply) - Read our shipping policy for more information.

  • Standard shipping estimates are as follows:

    Alberta and British Columbia: 2-4 business days

    Saskatchewan and Manitoba: 3 - 4 business days

    All other provinces and territories: 5 - 9 business days

  • We offer fast & easy returns on most products. Exceptions include products 30% off or more, climbing gear, underwear & more.

    Read our return policy here.

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