Altra Mont Blanc Speed Running Shoe – Men's under-25 Merino wool blend regulates temperature

Merino wool blend regulates temperature and wicks moisture to keep feet dry across changing conditions

RDS-certified 550-fill down delivers reliable warmth

and Primrose — easy to slip on

it’s designed for warm‑weather ease and sustainable style

and resists odor — critical on hot

Altra Mont Blanc Speed Running Shoe – Men's under-25 Merino wool blend regulates temperatureBuilt for competitive trail runners who want real speed without sacrificing grip or protection, the Mont Blanc Speed is our pick for fast training days and race efforts on technical terrain. Vibram Megagrip outsole handles wet and dry surfaces, while the dual EGO compound midsole MAX on the rim, PRO in the core gives you responsive cushioning that doesn't weigh you down. Vibram Megagrip outsole delivers reliable traction on wet and dry trail surfaces