Women's Valkyrie Speedworks Runner Size (US):7 Surge NRG+ enhanced with supercritical

Surge NRG+ enhanced with supercritical foam for ultimate comfort

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while the ultra-thin TYRTac™ rubber outsole provides exceptional ground feedback and superior traction on all surfaces

For a more traditional fit

Athletes will have the ultimate base for any movement

Women's Valkyrie Speedworks Runner Size (US):7 Surge NRG+ enhanced with supercriticalThe ultimate running shoe engineered to propel you forward with every stride, the Valkyrie Speedworks runner is equipped with an anatomical toe box and the LaunchPX midsole that features a full length nylon plate, positioned between two full length pieces of 100% Pebax supercritical foam for ultimate comfort, response and durable support for any movement. This runner features an Alphaweave upper for unmatched breathability that's perfect for extended