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La Sportiva
Nepal Cube GTX Mountaineering Boot - Men's

4.428571428571429 out of 5 stars
7 Reviews


Size Chart


Why We Like The Nepal Cube GTX Mountaineering Boot

The La Sportiva Nepal Cube GTX Mountaineering Boot isn't just for the high-minded alpine adventurers among us. The Nepal Cube takes a lighter approach to versatile warmth in a mountaineering boot than its older sibling, the Nepal Evo GTX. While both boots use GORE-TEX to guarantee our foot's dry ride, the Cube loses a full four ounces without taking away any warmth or capability. Whether you're summiting the Grand (Teton, that is), performing telecom magic in the middle of winter, or trekking high and low over many miles, this leather boot gives you a dry and flexible ride.


  • Lightweight, technical single boot made for mixed alpine climbs
  • GORE-TEX Insulated Comfort gives waterproof, breathable warmth
  • Leather upper with abrasion-resistant paneling and 3D Flex ankle
  • Carbon Tech insulated insole has a stiff flex and gives extra warmth
  • Vibram sole has automatic or semi-automatic crampon compatibility
  • Item #LSP00LQ
Upper Material
silicone impregnated Idro-Perwanger Roughout Leather (3.2mm), abrasion-resistant textile, air-injected rubber rand
GORE-TEX Insulated Comfort
Carbon Tech honeycomb (3mm)
GORE-TEX Insulated Comfort
Carbon Tech honeycomb insulation, EVA (4mm)
PU (2mm)
Vibram Matterhorn, impact brake system
Crampon Compatibility
automatic, semi-automatic
Claimed Weight
1lb 15oz
Manufacturer Warranty
1 year

Overall Rating

4.5 based on 7 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 1 reviews
4 Stars - 2 reviews
5 Stars - 4 reviews

Fits Slightly Small

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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3 out of 5 stars

March 27, 2024

Not good.

Size Bought:

I use it for Mount Baldy in California 10,064' I had symptoms of hypothermia, my feet went numb for three months, I tried double sox and it didn't solve the problem. I still use it but with warmers. I don't know if it's the model or just that one came out defective

Salomon undefined
5 out of 5 stars

February 22, 2024

Great boot for cold winter ice climbing.

I bought this boot for ice climbing in New Hampshire. I've been out four times now in temps down to the single digits (F). Finnish: The first thing you notice when unboxing these is, well, how nice looking they are. The "look" like the build quality is exceptional. Weight: Size 43 (US 10) each boot weighs exactly 1000g. Fit: The fit right out of the box is fantastic. The sizing seems to be spot on with all my other shoes. (US 10, EUR 43). My feet are a little wider than average and I often have compression at the widest part of my foot. Not with these, these fit perfect. I'm not sure how these will fit a narrow foot so be advised to check that if your feet are narrow. As mentioned in other reviews, the lacing system is simple and functional. The locking eyelets allow differential tightening between the top and lower part of the boot. Crampon fit: Grivel Rambo 4 crampons fit perfectly. Steep ice. Great support on steep ice. Hiking: The stiff insole that make these great for vertical ice makes these relatively stiff and inflexible for hiking. For approaches on snow they are fine but I'd look for something else for longer hikes that don't involve steep climbing. Warmth: My feet get cold. I have some toe nerve damage from many years of playing outside in the winter. I have used these standing on ice for 6 hours in air temps in the teens. I've done a couple hikes in temps in the single digits. I do have to put a chemical toe warmer in the toe of the boot but with that my feet have been comfortable in those conditions. The G5 Evo's are probably warmer but these work for what I want. I am very impressed and happy with these boots for what I need (winter ice climbing in temps down to low teens (F). I recommend these for this purpose and would buy again.


Originally reviewed on

4 out of 5 stars

September 7, 2022

Runs too Narrow.

I returned this product before using it
Size Bought:
5' 8"

These boots are made for ultimate performance, but unfortunately runs too narrow. I even went size up for these but still too narrow.

Tamjid A
5 out of 5 stars

February 15, 2021

Weather Proof

The quality doesn’t disappoint. They feel comfortable and warm. Sizing is mostly accurate when one leaves thinks of extra space for thick socks and crampons. The inner sole has an arch that may feel awkward until one gets used to it. Lacing is complex as provided laces are short. Bots this heavy require double knots to firmly keep the laces tight. Leather is beautiful and I enjoy the colours. Overall, an excellent warm alpine boot. My last Sportivas lasted 10 years of heavy use and abuse.


Originally reviewed on

5 out of 5 stars

February 19, 2020

First Impressions

Have half a season in these and the impression so far is very positive. The boots are comfortable, no issues with breaking them in, no awkward spots or pressure anywhere. The lacing system let's you dial in fit. Having the little rings lock of the lower half of the boot is quite nice and as long as you double knot the upper section stay tight as well. At lower temps (lower teens) I started to feel a bit cold, especially when belaying, but this is manageable with a double sock or just something thicker. One area which I think could be improved is the amount of space on the crampon lip, it could be a bit deeper. In deeper powder this did not disappoint, absolutely no snow got inside. For sizing I went with a 44 (I'm typically a US 10 in street shoes), and that gave ample room for the foot to move when using crampons without feeling loose in the heel.

user image

Originally reviewed on

4 out of 5 stars

February 19, 2020

Great boot!

Honestly thought they would be warmer in the harsh conditions

T Gunn

Originally reviewed on

5 out of 5 stars

January 2, 2020


These boots are the warmest I’ve been able to find. Also comfortable enough for long hikes in deep snow. Sizing was very accurate. Great overall product.

Originally reviewed on