Fabric Imported Synthetic sole The Brooks® Glycerin 17 running shoe will let you go the distance with its incredible flexibility, durability, and responsiveness keeping up with you every step of the way! Predecessor: Glycerin 16. Support Type: Neutral. Cushioning: Maximum cushioning. Surface: Road. Differential: 10 mm Please click here for more information about Glycerin 17 technology. Double Jacquard Mesh upper for excellent breathability, flexibility, and stability. 3D printed overlay has strategic stretch and structure for a secure fit. Plush interior bootie provides luxurious comfort without sacrificing responsiveness and long-lasting durability. Centralized lace-up closure delivers a secure, adjustable fit. Padded tongue and collar provides comfort against foot. Smoo