Unisex Zoom Fly 6 W GT-2000 13 but the GTS 21 provides

but the GTS 21 provides a more refined and comfortable running experience

• Dampener

Push it back in to stop the siren

Make light work of long runs

Unisex Zoom Fly 6 W GT-2000 13 but the GTS 21 providesOverview & Specs The Zoom Fly series has long aimed to bridge the gap between high performance racing shoes and everyday trainers. The Zoom Fly 6 is Nikes latest version in that line, pushing more of a super trainer hybrid race trainer angle. Here are the key specs: Metric Value Description Weight ~ 265 g 9. 3 oz (mens US 10) though some testers recorded ~ 244 g 8. 6 oz in a mens 9. Stack Drop Nike claims ~ 40 mm heel 32 mm forefoot (i. e. an 8 mm