Sizing: Standard running shoe lengthHeel: Medium to narrowMidfoot: Medium volumeForefoot: Medium to wideToe-Box Height: MediumArch Structure: MediumShoe Shape: Semi-curved The Mizuno Wave Rider 20 is a neutral road running shoe that offers firm yet reliable cushioning. The shoe is a great option for daily training and is suitable for faster uptempo efforts.Available June, 2017.