Thank you for viewing! This is a pair of Nike DRI-FIT running tights. Women's size M, black. I used these only a few times a year during the summer, but I haven't used them since last year, so I'm selling them. There are shallow pockets on the back of both sides, and one has a zipper. There are also zippers at both ankles, making them easy to put on and take off, and a convenient design. The back pocket area and the back of both knees are made of breathable mesh material. The ankles have non-slip rubber processing. Also, they are stretchy, making them comfortable to wear. How about them for autumn running? They are still usable, but they have been in someone's hands once, so there is some wear and tear, such as a slight stretching of the knees. Also, what looks like white stains is just the lighting. I didn't see any white stains. I plan to remove any pilling as much as possible and ship them clean, but as I am a private seller, there may be oversights. Please understand (*ᴗˬᴗ)⁾⁾⁾ No claims and no returns, please! - Brand: Nike - Size: M - Material: 92% polyester - Features: DRI-FIT function, one zippered pocket