These are Lululemon Dance Studio Crop Athletic Pants in size 10, featuring a drawstring closure, 30-inch waist, and a solid black color. They are designed for dance, athleisure, and casual wear, with a cropped style and a slimming, lightweight, and breathable design. The pants have a mid-rise fit and a waist tie for added comfort, making them ideal for activities like yoga, cycling, and cross training in the summer, fall, and spring seasons.