Brooks Glycerin GTS 21 Women's Blue Athletic Shoes Sneakers in size 9B are high-performance sneakers suitable for various occasions, such as activewear, casual wear, and workwear. They feature lace-up closure, arch support, cushioning, and a lightweight design, making them comfortable for activities like gym training, walking, running, and jogging. The shoes have a modern, colorful design with the Brooks logo and are made of synthetic materials with a rubber outsole.