Let your soles become one with the road in the Brooks PureConnect 4! ; This brand is a member of the Sustainable Apparel Coalition. ; Successor to the PureConnect 3. ; Part of the PureProject Collection from Brooks. ; Each PureProject style features five unique technologies (Nav Band, Toe Flex, BioMOGO DNA, rounded heel, and anatomical Last) that work together to promote an efficient, natural stride. ; Built for the neutral runner seeking a minimalist running shoe that places little between the runner and the ground. ; Lightweight, highly breathable mesh upper with minimal synthetic overlays. ; Elastic Nav Band at the mid-foot hugs the foot like a glove for a secure, comfortable fit. ; Plush tongue and collar for exceptional comfort. ; Soft, breathable lining offers a great next-to-skin feel. ; Molded foam insole supplies light underfoot cushioning. ; Adaptive BioMoGo DNA is a blend of earth-friendly BioMoGo and responsive Brooks DNA, that provides custom cushioning. ; Differential: 4 mm ; Toe Flex features a split-toe design that heightens forefoot flexibility and promotes the big toe to engage the runner's natural stability and power during push-off. ; The heel is slimmed down and rounded to encourage contact points to shift forward, aligning the joints and creating optimal energy return. ; Imported. Measurements: ; Weight: 8 oz ; Product measurements were taken using size 9, width D - Medium. Please note that measurements may vary by size.