The Theory is an indoor climbing shoe designed to adapt perfectly to the shapes of holds and volumes of indoor climbing. The extreme sensitivity and high dynamics allow a unique adaptability on the edges, making the shoe perfect for indoor use. The development of the Theory is based on a study by La Sportiva's R&D department of the gorilla's grip and the sensitivity of cat's paws, combined with the study of the evolution of new indoor climbing routes, which are characterized by very wide volumes and extremely dynamic movements.
This boot has been designed to develop maximum strength and dexterity while maintaining the highest sensitivity on any type of holds. New construction with exclusive D-Tech™ technology (Dynamic Technology): the sole wraps around the sides of the shoe to make the lateral edges disappear, ensuring a dynamic approach and adaptability to the shapes of the most modern indoor holds. The Vibram® XS-Grip2 compound sole with differentiated thicknesses on the toe supports grip on the edges, while the reduced volume heel allows for maximum precision on heel hooks.
The rubber toe covers the front surface of the upper to support the toe hook while maintaining adaptability to different foot types. The overall construction of the shoe facilitates the application of pressure on the volume of the modern indoor route setting as well as the support during cross kicking thanks to its high adaptability. The upper Velcro fastening enables optimum tension regulation. Theory: climbing-species evolution!
This shoe was developed on the basis of studies on the gorilla's gripping behavior and on the gorilla's gripping behavior and on the gorilla's gripping behavior and on the gorilla's gripping behavior to develop maximum strength and dexterity while maintaining maximum sensitivity on all types of holds
The sole consisting of a mixture of Vibram® XS-Grip2 of different thicknesses on the toe guarantees grip on every edge
The overall structure of the shoe facilitates volume compression on modern indoor routes and grip on traverses thanks to its high adaptability
Upper: Microfiber combined with suede tubular construction
Lining: None
Midsole: P3 System™
Patent: P3 System™
Sole: XS GRIP 2 with 3.5 mm with D-Tech™ technology (Dynamic Technology)
| Product Name: | La Sportiva Theory Climbing Shoes Men - Yellow/Black |
| Manufacturer: | La Sportiva |
| Item Code: | LSA729121 |
| Foot width: | regular |
| activity: | Climbing |
| gender: | men |
| textile fabric: | Leather |
| Season: | All Season |
| shoe closure: | Hook and Loop |
| sole: | Vibram® XS Grip2 |
| shoe type: | Low shoes |
| climbing shoe properties: | High pre-tension, Slightly asymmetrical |
| Model year: | 2026 |
| Collection: | Autumn/Winter |
| Color: | Black |
| weight: | 438g |
| GTINs: | 8058428104659, 8058428104666, 8058428104673, 8058428104680, 8058428104697, 8058428104703, 8058428104710, 8058428104727, 8058428104635 |
| Manufacturer page: | http://www.lasportiva.com/ |
In the following tables you will find information on the dress sizes of the manufacturer La Sportiva.
| International | S | M | L | XL |
|---|---|---|---|---|
| EU | 35 - 37 | 38 - 40 | 41 - 43 | 44 - 46 |
International S
International M
International L
International XL
| EU | 40 | 40.5 | 41 | 41.5 | 42 | 42.5 | 43 | 43.5 | 44 | 44.5 | 45 | 45.5 | 46 | 46.5 | 47 |
| cm | 25.7 | 26.0 | 26.4 | 26.7 | 27.0 | 27.4 | 27.7 | 28.0 | 28.4 | 28.7 | 29 | 29.4 | 29.7 | 30 | 30.4 |
| US | 7.5 | 8 | 8.5 | 8.5+ | 9 | 9.5 | 10 | 10.5 | 10.5+ | 11 | 11.5 | 12 | 12.5 | 12.5+ | 13 |
| UK | 6.5 | 7 | 7.5 | 7.5+ | 8 | 8.5 | 9 | 9.5 | 9.5+ | 10 | 10.5 | 11 | 11.5 | 11.5+ | 12 |
EU 40
EU 40.5
EU 41
EU 41.5
EU 42
EU 42.5
EU 43
EU 43.5
EU 44
EU 44.5
EU 45
EU 45.5
EU 46
EU 46.5
EU 47
| EU | 36 | 36.5 | 37 | 37.5 | 38 | 38.5 | 39 | 39.5 | 40 | 40.5 | 41 | 41.5 | 42 | 42.5 | 43 |
| cm | 23.8 | 24.1 | 24.4 | 24.8 | 25.1 | 25.4 | 25.7 | 26.1 | 26.4 | 26.7 | 27.1 | 27.4 | 27.7 | 28.1 | 28.4 |
| US | 5.5 | 5.5+ | 6 | 6.5 | 7 | 7.5 | 7.5+ | 8+ | 8.5 | 9 | 9+ | 9.5+ | 10 | 10.5 | 11 |
| UK | 3.5 | 3.5+ | 4 | 4.5 | 5 | 5.5 | 5.5+ | 6+ | 6.5 | 7 | 7.5 | 7.5+ | 8 | 8.5 | 9 |
EU 36
EU 36.5
EU 37
EU 37.5
EU 38
EU 38.5
EU 39
EU 39.5
EU 40
EU 40.5
EU 41
EU 41.5
EU 42
EU 42.5
EU 43
| EU | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 |
EU 26
EU 27
EU 28
EU 29
EU 30
EU 31
EU 32
EU 33
EU 34
EU 35
| International | XS | S | M | L | XL |
|---|---|---|---|---|---|
| EU | 23 - 26 | 27 - 30 | 31 - 33 | 34 - 35 | 36 - 37 |
International XS
International S
International M
International L
International XL