Model Name: AIRism Ultra Stretch Jogger Pants Series: AIRism Color: Black Black, size M Set of 3 (not sold separately) While I haven't noticed any particular stains, there's a possibility I've missed something. One pair has been worn about 5 times, and the other two have been worn 2-3 times each (they don't look very different). There's a general sense of wear and tear overall, so please be aware of that. If you're looking for multiple pairs for sports or work, how about these? These are used items, so please consider purchasing if you don't mind that. Thank you.