Sizing: Standard running shoe lengthHeel: Medium Midfoot: Medium to lowForefoot: MediumToe-Box Height: Medium to lowArch Structure: Medium to lowShoe Shape: Semi-curved The Mizuno Wave Rider 20 G-TX is a neutral road running shoe that offers firm yet reliable cushioning along with a water resistant upper. The shoe is a great option for daily training and is suitable for faster uptempo efforts.