Upper: Air mesh upper with synthetic overlay materials provides support and breathability. Padded heel collar for unmatched comfort. Padded air mesh tongue maximizes ventilation.

Midsole: Removable molded EVA sockliner. Built on Brooks' Universal Platform for a medium to high arch. Full-length BioS-257 is a greener formulation of Brooks' traditional S-257 material that decreases compression set 15% while providing excellent energy return and cushioning on every stride. When the material enters an active, enclosed landfill, a natural, non-toxic additive within the BioS-257 compound enables the midsole to breakdown faster, making it a more sustainable choice. Hydroflow ST in the heel enhances cushioning and shock absorption. Hydroflow in the forefoot enhances midsole cushioning, attenuating shock with industry leading dampening and comfort. DRB Accel helps to promote natural movement between the heel and forefoot by enhancing tunable torsion of the midfoot. DRB® (Diagonal Rollbar) is a high density post at the medial arch that is engineered for pronation control and creates a smoother transition from the midstance phase into the propulsion phase. Full length S-257 Cushsole, a durable, energy efficient compound utilized as in insole board for even more cushioning and flexibility. Universal sprung platform. An Engineered Forefoot Stable Pod Construction engineers the midsole and outsole components to set the foot up in an efficient, balanced position from heel strike to toe-off, offering maximum stability and responsiveness.

Outsole: HPR Plus is a higher durability, abrasion-resistant rubber outsole compound for increased traction and outsole durability. Contact rubber forefoot. Flex grooves provide optimal flexibility.

Available in width D (Medium).