Selected Quality Nylon Material, Lightweight, Soft, Durable, Anti-Discoloration. Please choose size based on height. XS(Height: 4‘11“-5’1”, Weight: 77-86lbs); S(Height: 5‘1“-5’3”, Weight: 87-97lbs); M(Height: 5‘3“-5’5”, Weight: 98-111lbs); L(Height: 5‘5“-5’7”, Weight: 112-124lbs); XL(Height: 5'7"-5'9", Weight: 125-137lbs). Features elastic waist and ankle cuffs, could be worn in different ways, rollable waist, or scrunchable legs. Versatile ripstop pants designed to keep muscles warm. Suitable for dancing, hiking, work out, or daily life. The ballet ripstop pants can be worn over ballet tights for warming up before a performance.