90% Polyester, 10% Spandex Elastic closure To ensure that our customers can receive high-quality products, please ensure you purchase the shorts SOLD BY BMJLUSAFashion or bmjlfashion on Amazon. We don't authorize any seller to sell our shorts. If you choose other bad sellers, you are likely to receive a product with poor quality and a serious size problem. Featuring: running shorts women with elastic waistband, it is stretchy and comfortable. It has stretchy spandex-ish underwear liner does not rid up and doesnt give you the feeling of granny panties. Athletic shorts for women with one side zipper pocket that enough to hold your card or key. And it has a nice thick high waisted band and the slit on the side leaves a lot of room for the booty! Bike shorts for women, they are perfect for everyday active, gym, explore ,a group fitness class, running and cycling, hiking, HIIT workouts, travel, bike, pilates and even casual wear. Outer material: Polyester, Nylon. Lining: Nylon, Spandex. This workout shorts with soft, comfy and breathable fabric. The fabric is lightweight and feels cool to the touch, not thick or hot fabric. Note: We strongly suggest that you have your body measurements taken first, and then refer to our size chart before order, XS=US 0-2, S=US 2-4, M=US 6-8, L=US 10, XL=US 12. Questions & Answer Q: What's the fabric? A: Outer material: Polyester, Nylon. Lining: Nylon, Spandex, lightweight to wear. It is non-transparent. Q: Any elasticity? A: It's nylon and spandex material of the stretchy underwear lining that is good elasticity. Q: Does the lining will rid up? A: No, the compression underwear liner does not rid up and doesnt give you the feeling of granny panties. Q: Is it has pockets for storing? A: Yes, It has one side zipper pocket that enough to hold your card or key. Q: Is it true to size? A: Yes. And we strongly suggest that you have your body measurements taken first, and then refer to our size chart before order, XS=US 0-2, S=US 2-4, M=US 6-8, L=US 10, XL=US 12, XXL=US 14, XXXL=US 16.