Get the most out of every session in the Glycerin 20 running shoe from Brooks. Soft cushioning and DNA LOFT v3 technology ensure a well-rounded and supportive fit. Recycled materials ensure a sustainable highlight. TECHNOLOGY. Run Type: Track, Road. Pronation: Neutral. Surface Type: Track, Road. Engineered mesh fabric upper offers a secure fit. Nitrogen-infused DNA Loft v3 cushiong midsole offers super-soft cushioning optimized to be lightweight, responsive, and durable. Weight: 9.1oz / 258.0g. Shop Brooks running shoes. Want more info? Learn how to buy running shoes. Engineered mesh fabric upper made with 32% recycled materials. Lace-up closure. Round toe with bumper. Padded collar. Textile lining. Cushioned footbed. DNA Loft v3 cushioned midsole with 10mm drop. Rubber sole. Color: blue