Topo Athletic Ultrafly 5 Running Shoe – Women's size-9-5 100g Heatseeker Eco synthetic insulation

100g Heatseeker Eco synthetic insulation retains warmth when wet — built for the unpredictable rain and humidity you get across the Southeast

800-fill-power down insulation delivers exceptional warmth for its weight

and New Taupe Green — sizes XS through 3XL

compact carry — ideal for trail runners and hikers layering on the go

or hunting pack

Topo Athletic Ultrafly 5 Running Shoe – Women's size-9-5 100g Heatseeker Eco synthetic insulationBuilt for daily training, long runs, and recovery miles, the Ultrafly 5 is our top pick for road runners who want natural foot movement without giving up cushion. ZipFoam midsole and a 5mm drop deliver a lively, balanced ride, while the signature wide toe box lets your foot splay and push off the way it was meant to. ZipFoam midsole provides lightweight cushioning with enough snap to keep your legs fresh late in long runs Engineered mesh upper stays