13 users: 4.8 / 5
5 experts: 94 / 100
Weight: Men 34.3oz / Women 31.4oz
Cut: High cut
Waterproofing: Waterproof

Verdict from 8 hours of research from the internet

10 reasons to buy

  • A decent number of reviewers, which include a couple of gear bloggers, spoke quite positively of the Lowa Weisshorn GTX’s warming capability.
  • This mountaineering boot received several 5-star ratings from numerous purchasers for its outstanding level of comfort.
  • Based on a handful of expert reviews, this Lowa climbing footgear has quite the flexible ankle collar.
  • Several wearers got deeply impressed with the boot’s waterproofing.
  • According to some users, the Lowa Weisshorn GTX—although build-wise bulky—is surprisingly light.
  • A few testers were greatly amused by the footwear’s capability to tackle level ground and approaches.
  • According to gear pundits, they were able to make precision steps over steep, glaciated terrain in this Lowa boot—especially with their crampons on.
  • The boot received nothing but acclaim from professional reviewers for its durability.
  • A very small number of owners got a good overall fit in their Weisshorn GTXs, especially after taking out the removable inner tongue.
  • The gear’s lacing system was strongly admired by a professional footwear critic.

3 reasons not to buy

  • Some mountaineers expressed their discontent with the Lowa Weisshorn GTX concerning its narrow width.
  • The boot lacks enough stability for overhang climbs, according to an expert footwear reviewer.
  • A reputable blogger criticized the footgear’s underwhelming vertical climbing performance.

Bottom line

From being satisfyingly comfortable to having excellent waterproofing and thermal insulation, the Weisshorn GTX mountaineering boot seems to have nailed everything right. And this is without mention of its excellent ankle flexibility and durability yet. That said, its constricting width didn’t sit well with some owners. All in all, mountaineers don’t have to think twice about getting the Lowa Weisshorn GTX with all of its overwhelming positives laid out on the table. Those with wide feet, however, are advised to wear thinner socks.

Expert reviews:

  • Lowa’s Weisshorn GTX is a single-boot, technical mountaineering gear with a split-grain leather upper. It has a waterproof liner supplied by Gore-Tex.
  • The high-cut collar of the boot is built with the Flexfit-Synchro technology. It gives the stiff ankle shaft a decent amount of flex to improve the user’s mobility.
  • Cushioning and surefootedness over especially rocky terrain are granted by the DuraPU midsole, while traction on various surfaces is given by the resolable Vibram Dolent. Resolable means that the outsole can be replaced with a new one.

The Lowa Weisshorn GTX is an over-the-ankle climbing footgear offered for both male and female mountaineers. Both versions come in standard width in a range of whole and half sizes. The women’s version is crafted using a female-specific last. The boot’s closure system, which features the I-Lock mechanism, and together with the FlexFit-Synchro technology, provides a personalized fit from top to bottom.

With its Vibram Dolent outsole, the Weisshorn GTX is serious to provide traction where it counts. Its profile features aggressive lugs with self-cleaning properties. It is also designed to give climbers the ability to make precise foot placements for edging stability. 

The Lowa Weisshorn GTX’s DuraPU midsole is responsible for the user’s underfoot cushioning and shock protection. It comes with a flexible yet stabilizing shank called Hard Winter (with I-Core). In addition, it is engineered with heel and forefoot notches, making the boot compatible with automatic (step-in) crampons.

Supplementary to the footwear’s overall comfort is the Insulate Pro Footbed. As its name suggests, it also has thermal insulation, thanks to the Gore-Tex Duratherm technology. 

Split-grain leather makes up the majority of the Weisshorn GTX’s upper. It is infused with a Gore-Tex liner for waterproofing. Its ankle zone, which features the Flexfit-Synchro, is made of an elastic, synthetic material. Its base has a high-wall rubber rand for bump and abrasion protection. This alpine trekking gear also has a pair of tongues—the inner tongue may be adjusted or removed, while the outer tongue is gusseted for debris protection.

The boot’s closure system consists of synthetic laces and (mostly) metallic lace hooks and loops. It includes the I-Lock—a pair of lace loops that, when pushed in, enable users to have a separate lacing configuration for the boot’s upper shaft. 

Size and fit

True to size based on 7 user votes
Small (29%)
True to size (71%)
Large (0%)
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How Weisshorn GTX compares

This shoe: 99
All shoes average: 91
64 99
This shoe: $495
All shoes average: $456
$175 $1250
This shoe: 34.3oz
All shoes average: 30.4oz
18.7oz 54oz
Paul Ronto
Paul Ronto

Paul loves adventure. Over the past 20 years, he has climbed, hiked, and ran all over the world. He’s summited peaks throughout the Americas, trekked through Africa, and tested his endurance in 24-hour trail races. He has worked in the outdoor industry as a whitewater and hunting guide, gear tester, copywriter, and outfitting specialist at places like The National Outdoor Leadership School, No Barriers USA, and Sierra Trading Post. He has been quoted in NYMag, NBCNews, and Business Insider to name a few.