La Sportiva Theory Climbing Shoes - Men's

Color: Black/Yellow
Size: 44.5 EU
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Providing the grip, control and dexterity you need for steep, futuristic climbs, the men's La Sportiva Theory climbing shoes are a just-right balance of aggressive performance and a sensitive feel.


  • Overall structure of the shoe facilitates volume compression on modern indoor competition routes
  • Slip-on construction and single hook-and-loop closures lock in your heels and aid power transfer
  • Rubber toe caps provide coverage for 90% of the toe surface
  • Patented Figure-8 slingshot tensioning focuses power in your toes
  • P3® platforms maintain powerful downturned performance
  • Updated low-profile heel allows for higher performance heel hooking
  • Features top-to-bottom sticky rubber and hybrid soles that combine edge and no-edge technology to adapt to the requirements of modern competitive climbing
  • Half-sole Vibram® XS Grip2™ rubber is easily resoleable and provides reliable grip; sole has differentiated thickness at the forefoot for power and sensitivity
  • D-Tech™ outsoles combine no-edge and edge technologies


View all La Sportiva Men's Climbing Shoes

Technical Specs

Best Use

Rock Climbing

Climbing Shoe Type







D-Tech™/1.8mm Vibram® XS Grip2™ rubber

Footwear Closure


Can Be Resoled




Weight (Pair)

15 ounces

Climbing Shoe Volume



From a Climate Neutral Certified brand

Size Chart

34 EU35.5 EU36.5 EU37 EU37.5 EU38 EU38.5 EU39 EU39.5 EU40 EU40.5 EU41 EU41.5 EU42 EU42.5 EU43 EU43.5 EU44 EU44.5 EU45 EU45.5 EU46 EU46.5 EU47 EU47.5 EU48 EU48.5 EU49 EU49.5 EU50 EU
U.S. Men's2.5+44.5+55.566.56.5+77.588.58.5+99.51010.510.5+1111.51212.512.5+1313.51414.51515.516
U.S. Women's3.555.5+66.577.57.5+88.599.59.5+1010.51111.511.5+1212.51313.513.5+1414.51515.51616.5

Sizing Notes

For rock climbing shoes: Choose soft shoes two to three sizes smaller than your street shoe size. We recommend you fit your trad shoes one to two sizes under your street shoe size. Remember to factor in stretch. Unlined slip-lasted shoes tend to stretch about one full size. Lined shoes stretch about a half size. Remember: a well-fit comfortable shoe will work better than an ill-fitting tighter shoe.

For boots: Add one half 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.

11 reviews with an average rating of 4.7 out of 5 stars

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