A refined mountain predator that shaves weight while amplifying underfoot protection. With a towering 38mm stack of responsive CMEVA at 278g, paired with redesigned 5mm Vibram Megagrip lugs, it devours rugged alpine descents while maintaining elite 8.6 trail traction across slick rock.
Skip it — or buy it
Verdict: dependsSkip it if
You have wide toes or suffer from bunions and forefoot swelling. Woven upper maintains a firm, non-stretch hold that squeezes wide forefeet.
You want a flexible, nimble ground-feel trail shoe. Maximal 40mm CMEVA stack completely isolates the foot from trail surface feedback.
You run predominantly on paved roads or smooth fire roads. 5mm Vibram Traction Lugs feel clunky and wear prematurely on hard pavement.
Buy it if
You tackle steep, technical mountain trails with wet roots and rocks. Vibram Megagrip with 5mm Traction Lugs provides industry-leading grip security.
You want plush, joint-saving cushioning for 50-mile and 100-mile ultras. 40mm heel stack protects legs from downhill impact over hours of continuous descent.
You want a lock-solid upper that never stretches out when wet. Updated woven textile upper holds the foot firmly through off-camber terrain.
What the community says
Synthesized from 25 wear-test videos and 260+ Reddit runner logs.
- n=44
Snug forefoot taperModerate
Woven upper has zero stretch; runners with wider toes report black toenails on ultras.
- n=31
High stack tips on technical switchbacksModerate
40mm stack height requires deliberate foot placement on steep off-camber descents.


























