Mammut Taiss Light Mid GTX
The Taiss Light Mid GTX are a new generation of mountaineering boots. Thanks to a combination of quality materials and innovative technology, they are incredibly lightweight, crampon-compatible and completely waterproof, with a focus on weight, durability and performance for alpine terrain.
Materials & Technology
Seamless schoeller® Softshell Outer
These boots are made with a seamless schoeller® softshell, giving the footwear excellent flexibility without compromising longevity. The softshell material is low in weight yet capable of withstanding bumps and scrapes in rugged terrain.
The seamless construction further reduces weight by minimising stitching while also reducing the risk of seams rubbing or chafing during extended use.
PFAS-Free GORE-TEX® Lining
GORE-TEX® lining provides waterproof protection for wet and snowy mountain conditions while remaining breathable during higher-output activity. The membrane extends into the tongue to help prevent water entering around the lacing area.
The boots are also PFAS-free, reducing the use of persistent fluorinated chemicals in their construction.
Carbon Fibre Midsole
The midsole is made with lightweight carbon fibre. Its high strength-to-weight ratio provides the stiffness and support required for technical mountain terrain without adding unnecessary weight.
The carbon fibre construction also delivers responsive underfoot control and precision when edging, climbing or moving across demanding alpine ground.
Vibram® Litebase Outsole
A Vibram® Litebase sole reduces the bulk and weight of the outsole without compromising performance and grip on rock, ice and snow.
The construction combines low weight with the durability and traction required for regular mountaineering and alpine climbing.
FairWear Production
Mammut works with FairWear to support safe and ethical working conditions within its supply chain, with a focus on protecting workers’ rights and improving manufacturing practices.
Features & Functionality
Lightweight Mountaineering Construction
Weighing approximately 550g in a UK size 8.5, the Taiss Light Mid GTX prioritises low weight while retaining the support and technical performance required for mountaineering.
Mammut Georganic® 3D Technology
Mammut Georganic® 3D technology shapes the parts of the boot that contact the foot around specific anatomical features. This improves comfort, fit and precision during technical movement.
Asymmetric Two-Zone Lacing
The asymmetric lacing system follows the shape of the foot towards the toe, allowing a more precise and secure fit.
Two-zone adjustment allows different areas of the boot to be tightened independently to suit changing situations, from general mountaineering to more technical alpine climbing.
Mono-Tongue Construction
The mono-tongue construction improves comfort and helps reduce pressure points across the top of the foot.
Neoprene Cuff Gaiter
A neoprene cuff gaiter provides additional protection around the ankle and helps prevent snow and debris from entering the top of the boot. Its soft construction also improves comfort around the cuff during movement.
Semi-Automatic Crampon Compatibility
The Taiss Light Mid GTX is compatible with semi-automatic crampons and has a B2-rated construction, making it suitable for mountaineering routes involving snow and ice.
Easy Resole Design
The boots are designed to be resoled after prolonged use. Replacing a worn sole can extend the usable life of the footwear rather than requiring the entire boot to be replaced.
Raised Rubber Rand
A raised rubber rand protects vulnerable areas of the upper from abrasion and impacts when moving across rock, scree and technical alpine terrain.
Key Features
- PFAS-free GORE-TEX® waterproof membrane
- Semi-automatic crampon compatible
- B2 rated
- Mammut Georganic® 3D technology
- Contact Control
- schoeller® softshell material
- Vibram® Litebase outsole
- Carbon fibre midsole
- Board lasting
- Two-zone lacing
- Asymmetric lacing construction
- Mono-tongue construction
- Neoprene cuff gaiter
- Easy resoling
- Raised rubber rand
Best For
- Mountaineering
- Alpine climbing
- Rocky alpine terrain
- Snow and ice
- Wet mountain conditions