Asics Metaspeed Sky 4 (D Standard) Unisex Flash Red/Black Size:M7/W8.5 A 'click' valve that makes

A 'click' valve that makes it easy to disconnect the tube from the bladder

Street approved

the world's first

The stretch overflow pockets and secure phone storage provide plenty of space for everything you need to refuel and stay hydrated

catering to various face shapes and sizes

Asics Metaspeed Sky 4 (D Standard) Unisex Flash Red/Black Size:M7/W8.5 A 'click' valve that makesThe Asics Metaspeed Sky 4 is part of ASICS' elite racing line, tuned for runners with a longer stride who are chasing a fast marathon or half marathon time. In Flash Red Black, it's a dedicated race day shoe built for a fast, efficient stride over long distances.