Step Up your Trail Running Game
Featuring an aggressive outsole, burly lugs and an adaptable fit, the Mutant is built for covering serious terrain. Equipped with the stickiest FriXion® XF 2.0 rubber to ensure positive traction over wet and loose trails and featuring a unique FusionGate™ lacing system, the Mutant inspires confidence and speed in the mountains. Updated graphics inspired by the topography of the Val di Fiemme and manufactured with more sustainable materials.
EU and US Sizing
More sizes means a better fit! Most mountaineering footwear is built on European half sizes which are smaller increments than US half sizes. This gives us five extra sizes per size run, which gives you a better fit!
| Unit | Men's Shoe Size Conversion Sizes | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| US & Canada | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 13 | 14 | 15 | 16 |
| Europe | 39 | 39 | 40 | 40-41 | 41 | 41-42 | 42 | 42-43 | 43 | 43-44 | 44 | 44-45 | 45 | 46 | 47 | 48 | 49 |
| Unit | Women's Shoe Size Conversion Sizes | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| US & Canada | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 |
| Europe | 35 | 35 | 35-36 | 36 | 36-37 | 37 | 37-38 | 38 | 38-39 | 39 | 39-40 | 40 | 40-41 | 41 | 41-42 | 42 | 42-43 |
Step Up your Trail Running Game
Featuring an aggressive outsole, burly lugs and an adaptable fit, the Mutant is built for covering serious terrain. Equipped with the stickiest FriXion® XF 2.0 rubber to ensure positive traction over wet and loose trails and featuring a unique FusionGate™ lacing system, the Mutant inspires confidence and speed in the mountains. Updated graphics inspired by the topography of the Val di Fiemme and manufactured with more sustainable materials.
EU and US Sizing
More sizes means a better fit! Most mountaineering footwear is built on European half sizes which are smaller increments than US half sizes. This gives us five extra sizes per size run, which gives you a better fit!
| Unit | Men's Shoe Size Conversion Sizes | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| US & Canada | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 13 | 14 | 15 | 16 |
| Europe | 39 | 39 | 40 | 40-41 | 41 | 41-42 | 42 | 42-43 | 43 | 43-44 | 44 | 44-45 | 45 | 46 | 47 | 48 | 49 |
| Unit | Women's Shoe Size Conversion Sizes | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| US & Canada | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 |
| Europe | 35 | 35 | 35-36 | 36 | 36-37 | 37 | 37-38 | 38 | 38-39 | 39 | 39-40 | 40 | 40-41 | 41 | 41-42 | 42 | 42-43 |
Guide Pick
, RMI Expeditions Guide
How Guide Pick™ Works
The guides over at RMI collectively spend over 10,000+ days a year on the world's highest mountains, climbing hundreds of thousands of vertical feet. They put their gear and apparel through the wringer. This stuff is their work wear and they simply will not tolerate inferior gear.
At the end of the climbing season, guides are given a survey to find out what gear they are using and why it is their favorite. We don’t often get complete agreement but we do get alignment and by looking at the data, a few clear winners rise to the top in each category.
We take those winners, and stamp them with the Guide Pick™ logo on our site. We also compile this wonderful little document, which you can use to see top contenders, gear advice, Guide Quotes, and more.
Return Policies
