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Mammut Men's Impact GTX Trekking Boots

Discount Card Price
Retail Price £130.00Was £117.00

Colour: Navy-Graphite
Size: 11.5
No fit available for this product
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Lightweight, fully waterproof 2-3 season boots with abrasion resistant uppers. Comfortable and supportive, designed for hiking and hill walking.

GORE-TEX® TechnologiesThe Mammut Impact GTX are all terrain boots suitable for walking, hiking and trekking.

Designed with velour leather combined with rubber reinforecements, they resist abrasion with the quality of leather coupled with the breathability of a synthetic. 

The Impact GTX benefits from a Vibram Tec hiking sole which is firm and stable on uneven ground, and a 'Capricorn Grip Profile' which mimics the shape of a mountain goat's hoof, for secure hold on ledges.

'Rolling Concept' Technology  provides support on specific areas of the foot, working to reduce ankle rolling and fatigue. It also reduces the weight of the sole for more comfort. 

Their GORE-TEX® Performance Comfort membrane provides full waterproofing and exceptional temperature management, while the PU wedge ensures all-day comfort.
  • Board Lasted
  • Liquid Rubber Protection
  • Mammut SD Footbed
  • Capricorn Grip Sole
  • Rolling Concept Technology


Synthetic: Yes
Upper Material: Leather and Synthetic
Waterproof Technology: GORE-TEX®
Weight Per Pair (g): 1230
Height: Boot Cut
Midsole: PU wedge
Sole Type: Vibram®
Breathable: Yes
Stiffness: Soft, for low level walks on defined trials
Lacing Type: Standard Lace Up
Boot Grade: B0 - not suitable for crampons
Ideal Crampon Rating: Not Crampon Compatible
Waterproof: Yes

Reviews (26)

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  • 5 out of 5
Long time use - still love these, 07 March 2016
By Emma S (Highlands)
I've been using these boots regularly since early 2012. Boots are very comfortable (no blisters, sore feet) and continue to be largely waterproof. Other than mud they look as good as new. I'd definitely recommend them!

  • 2 out of 5
Leak - Goretex failed, 05 November 2015
By dericbytes (London)
Had a pair 2 years and they leaked.

Had another pair 3 years. And they leaked

Apart from that I really liked them. They are slightly wider than your average shoe. Which is why I bought them. If they hadn't leaked I would have bought another pair

  • 5 out of 5
Big impact, 11 October 2015
By caleyfan (Peebles)
Bought a pair of Mammut Impact GTX boots and at first thought they were perfect.Comfiest boots I`d ever bought. Unfortunately after a short walk one of the eyelets came loose. Took them back and got an exchange with no problems. Superb service from staff.

These boots would be perfect for walks round the park or gravel/mud paths but not sure about "proper" hillwalking....

  • 5 out of 5
brilliant, 31 August 2015
By shrek (bexley)
superb pair of boots comfortable from box seem very well made and sturdy offering good allround support have just spent 8 miles on coast in torrential rain and feet are totally dry. about 90 miles done so far on mixed terrain with no problems highly recomend. good service from go outdoors lakeside

  • 1 out of 5
Not waterproof, 03 August 2015
By Mac (Liverpool)
I bought these for my Gold DofE because it stated that they where light, comfortable, and waterproof. but on the second day there was heavy downpour which filled my boots to the top with water.

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