At the core of the 1540v4 is our signature Fresh Foam midsole

and a convenient inside zipper for easy on-and-off

plastic bottles

Designed for optimum comfort with ECCO's FLUIDFORM™ Technology

Vamp: 60% Polyurethane

HOKA CHALLENGER 8 MEN'S Size:5 At the core of theBuilt at the intersection of road and trail, the Challenger 8 delivers all the smooth cushioning and confidence inspiring traction youll need to tackle a variety of terrain. A gravel grinding workhorse loved for its hyper cushy ride, weve added even more foam underfoot and improved the fit since our last iteration. Finished with a minimal mesh upper, plush collar, and durable rubber toe cap, weve reimagined the orientation of our multi directional