Sizing: Fits large; purchase 1/2 size smaller than standard running shoe lengthHeel: Medium to narrowMidfoot: Medium to low volumeForefoot: Medium to wideToebox Height: MediumArch Structure: Medium-lowShoe Shape: Semi-Curved The Merrell Vapor Glove 3 is a zero-drop, nearly barefoot road running shoe designed to deliver a full ground contact experience for daily training.