Brooks Glycerin 21 - Women's Shoes : Black/Black/Ebony : Crafted with nitrogen-infused DNA Loft V3 midsole, the Brooks Glycerin 21 sneakers offer lightweight and responsive comfort. Ideal for walking and running, the lace-up closure of these sports shoes offers a secure fit. From casual rides to sports events, these sneaker shoes are a perfect choice. Breathable engineered knit upper. Removable foam footbed and textile lining. Wide platform heel. Brand detailing on the upper and sole. Round toe. Road Tack rubber outsole. Imported.