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La Sportiva
G2 Evo Mountaineering Boot - Men's

3 out of 5 stars
5 Reviews


Size Chart


Why We Like The G2 Evo Mountaineering Boot

The G2 Evo is La Sportiva's ultimate thermal gaiter boot built for extreme mountaineering in low temperatures. It's heavily insulated with a felt-insulated inner boot and removable foam liner, and the Cordura+ stretchy gaiter protects the insulation with rugged abrasion- and water-resistance, and Ultrasonic Welding gives the gaiter a seamless design for greater weather protection. The inner boot is also made of Cordura+ for longlasting durability, and it's four-layer constructed with felt insulation and an aluminum layer that bounces body heat back. A removable liner insulated with EVA adds even more warmth, and it has a flex zone to ensure easy mobility up the mountain. Underfoot, the G2 Evo has a carbon midsole to maintain torsional rigidity without much weight. Vibram's rubber sole ensures traction worthy of the Matterhorn, and it's compatible with automatic crampons.


  • Ultra thermal mountaineering boot built for low temperatures
  • Stretch Cordura+ gaiter gives weather and abrasion protection
  • Double Boa dial and zipper ensure a fast-and-easy entry
  • Cordura+ inner shell with felt and aluminum layer for warmth
  • Removable sock liner insulated with EVA for greater warmth
  • HoneyComb Tech carbon insole maintains a stiff platform
  • Vibram Matterhorn rubber sole with automatic crampon compatibility
  • Item runs small, so we recommend going up one size for ideal fit
  • Item #LSPZ27U
Upper Material
[gaiter] Cordura+ [inner shell] Cordura+ felt (4-layer), polyethylene
Removable Liner
PE + EVA (6mm)
Double BOA, zipper
3mm Honeycomb Tech carbon integrated insole
PU (2mm)
Vibram Matterhorn with Impact Brake System
double boot
Crampon Compatibility
Claimed Weight
2lb 5oz
Manufacturer Warranty
1 year

Overall Rating

3 based on 5 ratings

Review Summary

1 Stars - 1 reviews
2 Stars - 0 reviews
3 Stars - 3 reviews
4 Stars - 0 reviews
5 Stars - 1 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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1 out of 5 stars

June 13, 2024

Boots bought were not new, terrible CX

Bad experience with the product and with Backcountry. Bought the boots and they arrived with clear previous use. Sent them back and requested a refund, since I disliked the fit. The company policy says 3-5 business days for refunds, yet I had to call after 6 biz days, since apparently no one had sent a refund. Very negative experience with Backcountry

3 out of 5 stars

April 5, 2024

hurt ankle bone, tight toe box

I returned this product before using it
Size Bought:

Not covering any new ground here but, as predicted, this wasn't a great fit for me with wide feet. I tried both this and the Scarpa Phantom 6000 and those were soooo much more comfortable. It's a shame because these boots seemed potentially warmer (or at the very least, had a stiffer/beefier inner boot) and I loooooved the BOA system. But fit comes first.

3 out of 5 stars

November 15, 2023

Way too narrow for my feet and calves

I've used it once or twice and have initial impressions
Size Bought:
5' 9"

I like the look of them, but they are just too narrow for my feet. I have size 10 1/2 wide feet and with the lining inside my little toes were completely numb in about 10 minutes of walking. So i took them out and realized ill need about 3 layers of socks to not totally destroy my feet.The boa strips are really nice and do keep you secure but it seems like one extreme or the other with these. The zip up abrasion covers are an absolute pain, everything has to be lined up just perfectly or you just about rip the zipper off. I have pretty large calves naturally and I was about all these boots wanted. I know I sound like I'm just knocking these boots into the dirt here, but when you pay almost 1000 dollars for something it should be just about perfect.

Cody C
5 out of 5 stars

June 23, 2023

Did the job very well, comfort an issue

I've used it several times
Size Bought:
6' 2"

I used these to climb Lobuche next to Everest base camp. This was fixed-rope climb on varied terrain including rock, packed snow and ice with crampons. I also trained in these but mostly on stairmasters at a gym but a little on flat terrain. I love the overall fit although I did have to buy a size and a half larger than my normal shoe size and a half size larger than my normal trekking boot. Getting my large foot (US size 13) in and out is not the easiest but certainly possible. The boa adjustments are very nice. After 11 hours climbing up and down I will say I was happy to change into my normal trekking boots. I understand the need for stiffness - and it certainly made climbing easier and more comfortable - but for just normal walking/hiking it is too much. The crampon attachment was easy and the fit was secure. Overall I would highly recommend these for the purpose of climbing.

Bryant E
3 out of 5 stars

June 1, 2021

heel pocket too big for me

I returned this product before using it
Size Bought:
5' 11"

This boot seems warm and light for a double boot but the heel pocket was way too big for me. I tried different sock thickness's and no matter how I cranked down on the boa knobs I could not get the heel lift to a tolerable level. I have the G5 sm in the same size and the heel lift and overall fit in that boot is manageable but not in this G2 evo. Back it goes. I guess I will stick with my aging Spantiks for now. I don't really want to give it a star rating since the boot doesn't fit and if it fits you maybe you will like it but the software requires it.

Robert C