Maurten Bicarb System Marathon Essentials Stretch fabric for freedom of

Stretch fabric for freedom of movement

enhanced by gravel-specific grip and a smooth underfoot feel that adapts across surfaces

Running Performance - Striking that balance you only dared dream of: all the comfort and cushioning of Energy Foam backed up by the dynamic support of the Active Chassis

Lighter engineered woven upper inspired by our race-day shoes

The Brooks Ghost 17 is built for comfort

Maurten Bicarb System Marathon Essentials Stretch fabric for freedom ofThe Maurten Bicarb System is an advanced sports fuel used by athletes during high intensity exercise where the boundaries of effort and power start to limit performance.