G-Summit
Description
The G-Summit is the new benchmark for high altitude technical mountaineering, developed to satisfy two needs: to be an extremely warm single boot for high altitude mountaineering and be a lightweight and precise double boot for extended expeditions in highly challenging climates. With its unique removable liner and thermal insole, the G-Summit is a customizable product based on the requirements of the user and the terrain/conditions of intended use.
• Inner shell made with the patented Core-Wrap™ technology maximizes warmth while remaining ultralight.
• The BOA® Fit System makes it quick to adjust the lacing fastener - designed to be opened and closed while wearing gloves in cold conditions.
• Optional liner addition can turn the G-Summit into a double boot for increased warmth.
• Vibram® Dura Step compound offers the best grip for mountaineering excelling in low temps and wet terrain.
• the Ice-Tech™ tread is divided into two sections enhancing performance during ascents and hiking.
• Resoleable, to reduce environmental impacts
Retail price
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| Boot Weight | Half Pair Full Pair |
| Single or Double boot | Double |
| Boot Stiffness | Rigid |
| Best Uses | Best Uses: Technical Ice and Mixed Climbing |
| Crampon Compatability | Toe + heel bail - all crampons styles will work (universal, semi-auto, and auto) |
| Boot Features |
Built-in gaiter Lock-off lacing |
| Sizing | Euro: 37 - 48 (half sizes)
Tips: La Sportiva recommends that you add one 1/2 size to your street shoe size. You should be able to slip one finger behind your heel when you are standing up with the boot unlaced and your toes touching the front. If the boot is too short, your toes will get smashed walking downhill. Too long and your heel will slide up and down and give you blisters. |
| Materials & Construction | Upper: Abrasion Resistant Fabric / TPU Mudguard Shield / Differentiated lacing w/ BOA® M4 Dial System / Weatherproof Zipper / Water Repellent Internal Gusset / Core-Wrap™ Inner Shell / TPU Heel & Toe Caps / PU Techlite Rand (lateral) & Rubber Rand (medial)
Shell: Core-Wrap™ Liner: 3mm Thermo Reflective PE + EVA Single Density Foam Insole: 5mm Thermal Insole (Removable) / 5mm Carbon Z-Therm™ (Mounted) Midsole: None / TPU Insert For Front & Rear Crampon Attachment Sole: Vibram® Ice-Tech™ w/ Climbing Zone Platform (Toe) / Impact Brake System™ / Vibram® Dura Step Rubber Compound Last: Nepal |
| Warranty | |
No reviews yet.
For UK winter mountaineering, however, decision making becomes more complex. The G-Summits are an excellent choice for challenging winter climbs, offering technical ability, warmth, durability, and the convenience of BOA lacing. If you frequently contend with cold feet (or your partner regularly subjects you to 2-3 hour belaying stints), investing in G-Summits might be justified. However, if cold isn't the overriding concern then that price tag is bound to start looking a bit off-putting. If you're looking for technical performance and the benefit of the BOA lacing and inbuilt gaiter, but have less need for out-and-out insulation, then the G-Tech would be an option - especially considering the big cost saving. For me, climbing in G-Summits over the winter of 2023-24 was a great experience, and I'm looking forward to more of the same this coming season. All said though, I still carry a torch for the old G5 Evo, a boot that for me more effectively hit a Scottish sweet spot.