Light, durable footwear providing comfort, support and protection on extended trail runs.
The four-season, waterproof shoe designed to adapt to your long training and adventure runs over mud, roots, and rocks no matter the forecast. The spacious forefoot and secure midfoot hold deliver comfort and stability, the mud-releasing lug pattern gives you the control to rip and grip across any terrain, and the durable upper and Vibram® Megagrip outsole stand up to unforgiving rock and soggy trails.
Customer service tips: This shoe is designed for a Comfort Fit, giving you the most space at the toe and a less snug fit around the foot.
Features & Specs
Technical features- Waterproof
- Breathable
- Lightweight
- Durable
- Abrasion resistant
Footwear construction- Dual-density midsole material and construction combine cushioning with lasting shock absorption and support for all-day comfort and stability on rugged terrain
- Lacing system provides a smooth pull and secure midfoot fit while preventing backslip
- Tongue pocket secures the laces, eliminates lace bounce, and prevents snagging
- Flexible external frame wraps the midfoot for a secure hold that prevents forward slide and toe bang
- Abrasion-resistant PFAS-free woven polyester upper is durable, lightweight, breathable, and flexible
- Flexible laminated TPU reinforcement zones add protection and abrasion resistance
Footwear geometry- Mud-releasing custom 4mm lug pattern provides grip on hardpack and bite on soft trails
- Offset (Stack height): 6mm (25mm : 19mm)
Footwear liner construction- Full GORE-TEX liner with Invisible Fit Technology provides waterproof protection with improved flex, comfort, and breathability
- Form-moulded sockliner is smooth and comfortable
Footwear outsole construction- Vibram® Megagrip outsole with LITEBASE technology delivers durable, surefooted performance across a range of conditions while shedding every gram possible
Size 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11,11.5, 12, 12.5, 13
Weight (1/2 pair)280g / 10oz
Sizing chart
FOOTWEAR
Footwear sizing chart
cm | US M's | US W's | UK | EU | Mondo |
Your foot measurements:22 | 4 | 5 | 3.5 | 36 | 22 |
22.5 | 4.5 | 5.5 | 4 | 36 ⅔ | 22.5 |
23 | 5 | 6 | 4.5 | 37¹/₃ | 23 |
23.5 | 5.5 | 6.5 | 5 | 38 | 23.5 |
24 | 6 | 7 | 5.5 | 38⅔ | 24 |
24.5 | 6.5 | 7.5 | 6 | 39¹/₃ | 24.5 |
25 | 7 | 8 | 6.5 | 40 | 25 |
25.5 | 7.5 | 8.5 | 7 | 40⅔ | 25.5 |
26 | 8 | 9 | 7.5 | 41¹/₃ | 26 |
26.5 | 8.5 | 9.5 | 8 | 42 | 26.5 |
27 | 9 | 10 | 8.5 | 42⅔ | 27 |
27.5 | 9.5 | 10.5 | 9 | 43¹/₃ | 27.5 |
28 | 10 | 11 | 9.5 | 44 | 28 |
28.5 | 10.5 | 11.5 | 10 | 44⅔ | 28.5 |
29 | 11 | 12 | 10.5 | 45¹/₃ | 29 |
29.5 | 11.5 | 12.5 | 11 | 46 | 29.5 |
30 | 12 | 13 | 11.5 | 46⅔ | 30 |
30.5 | 12.5 | 13.5 | 12 | 47¹/₃ | 30.5 |
31 | 13 | 14 | 12.5 | 48 | 31 |
31.5 | 13.5 | 14.5 | 13 | 48⅔ | 31.5 |
32 | 14 | 15 | 13.5 | 49¹/₃ | 32 |
Activity Mountain Run
Model X000009612
Manufacturing facility Idea (Macao Commercial Offshore), China
Fit & Sizing
How to choose your size for footwear with a Default Comfort Fit
If you want to stay with the default roomier Comfort Fit: choose the size equal to your measured foot length.
If you prefer a performance-oriented Precision Fit: choose ½ size smaller than your measured foot length.
If you prefer a close Technical Fit: choose 1 full size smaller than your measured foot length.

Materials & Care
Materials- Lining: Textile
- Insole: Textile
- Outsole: Rubber