Topo Athletic Ultrafly 5 Running Shoe – Men's Size:9 Merino wool blend actively regulates

Merino wool blend actively regulates temperature and wicks moisture — especially useful in Southern heat and humidity

whether you're on a trail or running errands post-run

Easy clean slide-on design

set-in sleeves allow full range of motion as they move and explore

MaxTrac rubber grips confidently on loose and hard-packed surfaces

Topo Athletic Ultrafly 5 Running Shoe – Men's Size:9 Merino wool blend actively regulatesBuilt for daily training and long run days, the Ultrafly 5 is our pick for runners who want a natural ride without sacrificing cushion. A wide toe box lets your foot splay naturally, while a low 5mm drop keeps your stride efficient. Available in standard and wide widths to fit more feet right. 5mm drop with generous midsole cushion natural ride that won't beat you up on back to back training days Wide toe box design lets toes spread and splay