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Last updated January 1st, 2020
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The La Sportiva Men's Theory Climbing Shoe is an aggressive slipper for competitive climbing. An aggressive downturn and easy-on style help you push the limits of the climb. Send past the competition and trust the sticky Vibram XS-Grip 2 sole on every hold. Your heel locks in with the help of a simple hook-and-loop closure, which allows for an easy out and fast relaxing once you've been crowned champion.
The La Sportiva Men's Theory Climbing Shoe is an aggressive slipper for competitive climbing. An aggressive downturn and easy-on style help you push the limits of the climb. Send past the competition and trust the sticky Vibram XS-Grip 2 sole on every hold. Your heel locks in with the help of a simple hook-and-loop closure, which allows for an easy out and fast relaxing once you've been crowned champion.
FEATURES of the La Sportiva Men's Theory Climbing Shoe
Ultra-sensitive, aggressive slipper with with No-Edge Technology
For modern competition climbing and futuristic maneuvers
Upper: Microfiber and Leather
Lining: Unlined
Midsole: P3 System
Sole: 1/2 Sole No-Edge Dynamic Technology (D-Tech) / Diff erentiated
2-3.5mm Vibram XS Grip2 Rubber
Rubber improves upon the superior grip characteristics of vibram is the world leader in high performance rubber soles
XS GRIP, and delivers outstanding precision of support and shape stability
Product Specifications
Features:
Cushioned
Sustainability:
Animal Friendly
Footwear Height:
Ankle
Weight:
7.5 oz
Upper:
Leather, Microfiber
Outsole:
3.5 mm Vibram XS Grip 2
Terrain:
Off Trail, Mountain
Disclaimer:
We only ship this brand to US Addresses.
Gender:
Mens
Best Use:
Climbing, Mountaineering and Alpine, Hiking
Footwear Closure:
Slip-on
Toe Coverage:
Closed Toe
Product Reviews
Rated 5 out of
5 by
Mitch from
Great shoesI’ve only used these for about a month now, but they broke in quickly and have a very snug feel with a tension-y type fit from the toes and wrapping around the heel. I have a narrow foot and these are the first that the heel feels like it stays put. Also these feel very “sticky” on any big volumes or holds. Definitely a great shoe for indoor climbing (haven’t tried them outside yet).
Date published: 2023-04-15
Rated 5 out of
5 by
Chansen616 from
Tricky to size but very worth the hassleI read just about every review of these that exist online, of which there aren’t all that many compared to other shoes.
I love these shoes. The fit throughout and especially the heel has been a game changer, and the xsGrip2 is a noticeable step up for indoor bouldering compared to the xsEdge. Compared to Miuras they are not as good at edging, but that’s to be expected and I’ve found them capable. A very welcome performance boost has been while on kilterboard because they are great at gripping everything, and also working out cave problems the toe and heel hooking has been great.
SIZING:
I believe that my feet are a little bit on the wider side, so my Miuras for example felt a bit tight in the toe box. That was also true for these (unsurprising since many say La Sportiva tend to run narrow), however I’d say they are not as narrow as the Miuras.
I tried sizing down initially and I either couldn’t get my foot physically in the shoes, or they were terribly painful. I got a pair in my size and they were very tight (particularly the toe box), but I wore them around the house, over a heater, sat wearing them with Sox, and after about 2 climbing sessions they felt right, and the fight is absolutely wonderful.
They are very snug in most places, and actually I do have a little bit of of space that develops after about an hour of climbing after my feet start sweating, which for me I actually am grateful for. They still fit exactly as I’d like, they’re just more of a comfort fit, so if you have feet a touch in the wide side and want a very tight fit, I’d say you could go a half (EU) size down. If you have regular or narrow feet you may be able to go down one or more (EU) sizes down.
I like to wear my shoes for at least an hour without taking them off when bouldering in a gym, so that could influence your sizing decision as well.
Also mentioned, I did exchange the shoes twice, and the process was super simple, just a quick online chat and everything was settled just fine, although I’d warn that if you use PayPal you will have to do either a traditional send and wait exchange, or do a new purchase to expedite the process, but the Moosejaw staff were very helpful in getting the prices to match with the discounts etc.
Date published: 2023-02-28
Rated 5 out of
5 by
Halfpint21 from
Great Shoe!Shoes are a great fit and runs even with my street shoe size. It is great for heel and toe hooks so look to see improvements in your game! I would recommend anyone to this shoe.
Date published: 2022-12-19
Rated 5 out of
5 by
Matt from
Great shoesSoft sticky rubber. Greatly improved grip compared to my old shoes. The fit is a little weird in the heels. There is extra space from side to side even though it's a tight fit from heel to toe. When climbing, if I hook my heel on a grip, there is terrible feel because my heel always slides around inside the shoe. 4/5, got them on sale on blackfriday and don't regret it. Looking at the full price and knowing what I know now, I would pick something else.
Date published: 2022-12-18
Rated 5 out of
5 by
Rush from
I love these shoesI wear a size 42.5 is Salomon’s, 41 in tc pro and testarossas. Bought these in a 41 and could barely stand in them when I first bought them. I put them by the fire and then put them on to break them in quicker and after a few tries they were perfect at the gym the first time wearing them. Can’t comment on how much they stretch as I’ve only worn them a few times.
Date published: 2022-11-23
Rated 5 out of
5 by
Ethan from
AmazingThese shoes are now my go to indoor shoes. They perform extremely well and are great. The smearing is excellent and the edging good. It has great sensitivity and feels great. Overall they are the best shoes I have ever bought.
Date published: 2022-04-27
Rated 5 out of
5 by
adventurekatz from
Best shoes for indoor boulderingBought these a month ago and have been loving them in the gym. I dont know if I would use them outside but they are perfect inside. I wear a 46.5 street shoe and I got a 44 of these. It's a tight fit but they stretch.
Date published: 2022-03-07
Rated 5 out of
5 by
Dsamma1 from
Great advanced climbing shoeI’ve been wearing la sportiva solutions and butora acros for many years and love them. Recently got the theory based on friend recommendations. Great fit and very comparable to the solutions and acros. Softer rubber so easier to break in and more sensitivity.
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Size Guide
La Sportiva Men's Climbing Shoes
EUROPEAN SIZE
USA Size Conversion
34
2.5 +
34.5
3
35
3.5
35.5
4
36
4.5
36.5
4.5 +
37
5
37.5
5.5
38
6
38.5
6.5
39
6.5 +
39.5
7
40
7.5
40.5
8
41
8.5
41.5
8.5 +
42
9
42.5
9.5
43
10
43.5
10.5
44
10.5 +
44.5
11
45
11.5
45.5
12
46
12.5
46.5
12.5 +
47
13
47.5
13.5
48
14
49
15
50
16
NOTES and FIT INFO La Sportiva footwear is built and offered on European half sizes, which are smaller increments than US half sizes. This gives them four extra sizes per size run, and ultimately gives you a better fit.
As a general rule soft shoes like climbing shoes require a tighter fit, or about two to three sizes smaller than your street shoe size.
La Sportiva recommends you fit your trad climbing shoes one to two sizes under your street shoe size.
La Sportiva offers a lot of lasts, and each offers a different fit and feel. Remember to factor in potential stretching.
Unlined slip-lasted shoes tend to stretch a bit more than lined shoes, or about one full size.
Lined shoes stretch about a half size.
LA SPORTIVA CLIMBING SHOE FIT SYSTEMS PERFORMANCE FIT - Offers a high performance fit and a downturned last.
TECH FIT - A more technical fit and a last with neutral profile.
COMFORT FIT - A comfortable fit and a last with more volume and a neutral profile.