Aenergy Mtn Low GTX

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 A fast-hiking shoe with solid grip and confident waterproofing.

Mammut says: 

Go light and go fast. From muddy trailheads to rocky summits, these lightweight shoes are built to take on any fast hiking outing, thanks to the highly abrasion-resistant mesh upper and waterproof GORE-TEX Stretch membrane. A well-cushioned midsole and Ortholite Insole offer additional comfort, while a Flextron shank improves torsional stability and reduces the energy needed to move faster along the trail. The Vibram Megagrip outsole provides confident grip in wet or dry conditions. Finished with a rocker-shaped sole, the Aenergy Mtn Low GTX guarantees a smooth landing and easy toe-off so you can cover technical terrain with confidence.

All Mammut products purchased within the Europe come with an extended 30-month warranty period. For more details click here.

Our Verdict

The Mammut Aenergy Mtn Low GTX weighs around 373g (UK 8) and combines a breathable mesh upper with stretch GORE-TEX for reliable weather protection. The Vibram Megagrip sole grips well on mixed ground, while the rocker profile smooths transitions at pace. Cushioning feels balanced—soft enough for comfort, firm enough for stability. Breathability is good for a waterproof shoe, though it runs slightly warm in humid conditions. Fit is snug through the heel with a good midfoot hold. Build quality is excellent, with durable materials holding up well across repeated use.

- Reviewed by Ultralight Outdoor Gear

Features

Specifications

• Weight: 373g (per UK8 size)
• Flex index: A5
• Heel drop: 8 mm
• Lace system: Standard lacing

Material & Construction

Help & advice:

• Choosing Hiking Footwear