Engineered with Saucony's lightweight PWRRUN PB foam midsole

and also lends the hat a forgiving and comfortable stretch

Floatride Energy Foam provides lightweight

This ultralight

Topo Athletic | Ultraventure 4 | Men's | Grey/Grey wide toebox Engineered with Saucony's lightweight PWRRUNMORE COLORS Experience ultimate comfort and performance with the Topo Ultraventure 4, the latest evolution of our best selling trail running shoe. Designed for long lasting comfort, the Ultraventure 4 combines a plush platform with Topo's signature roomy toe box to give your feet the space they need on every run. The lightweight ZipFoam midsole delivers responsive cushioning, while the Vibram XS Trek EVO outsole provides superior traction on light to