Challenger 8 GTX - Men's High Performance and freedom of movement for

and freedom of movement for any 3-season outdoor activity

It also features a unique right-side loading design that allows you to easily manage bottles when space on the frame is limited

it delivers smooth gear steps and precise shifting

When you need accurate heart rate and heart rate variability (HRV) data

modernized fit to move with you

Challenger 8 GTX - Men's High Performance and freedom of movement forLike that running buddy who never bails, the Challenger 8 GTX says yes to the road, yes to the trailand yes to rain, mud and snow. Redesigned with more foam underfoot, an improved fit and reimagined multi directional lug orientation, its both smooth on the pavement and trustworthy on dirt. And its GORE TEX Invisible Fit waterproof membrane means it doesnt balk at puddles, either. Guess youre out of excuses.