Topo Athletic
Ultrafly 4
Trail Running
2023
The previous Ultrafly generation — the same foot-shaped fit and low-drop platform as the 5, now at a lower price.
Specifications
Drop3mm
Weight9.9 oz
MidsoleZipFoam
UpperEngineered mesh
Best ForUltras, technical trail
StabilityNeutral
CushionMax
WaterproofNo
Carbon plateNo
Released2023