The Brooks Women's Glycerin 21 Running Shoes in black are designed for women in a size 5 medium width. These athletic sneakers feature a lace-up closure for a secure fit and are suitable for casual occasions. With a low-top shoe shaft style, the sneakers offer comfort and breathability, making them ideal for various activities such as gym training, walking, cross-training, and running. The shoes are part of the Brooks Glycerin product line, known for their performance in sports activities.