Made from Sustainable Materials This product is made with at least 59.7 % recycled materials in the upper 4.1% Plastic bottles diverted from landfills Product Features Low-top neutral runners with Brooks branding throughout design Updated warp knit upper provides a breathable feel and extended flexibility for closer fit and more natural movement Upgraded cushioning with 2mm more Nitrogen-infused DNA Loft V3 technology for maximum softness Redesigned midsole and outsole offer a wider platform for smoother, easier transitions Lace closure for secure fit Patterned outsole for enhanced durability and reliable grip across all surfaces The Brooks Glycerin 21 is imported. The Women's Brooks Glycerin 21 Running Shoes push an already near-perfected design to a new peak. An updated warp knit upper allows your feet to breathe while increasing your range of motion, and an added 2mm of nitrogen-infused DNA Loft V3 technology provides you with sensationally soft cushioning that'll have you comfortably coasting run after run. More than half of the upper is constructed from recycled resources, including plastic bottles diverted from landfills, making this sneaker a planet-saving pair!