These are running pants from Jack Wolfskin. The size is equivalent to a Medium. I purchased them at an EU Jack Wolfskin store. I liked them so much that I rarely wore them because I didn't want to. I've probably worn them once or twice. The fabric is thick but stretchy, and seems easy to move in. The design is also unique, making them stylish and distinctive long pants. I will fold them up small for shipping. I may reuse packaging materials, but I will use clean ones. *I am also selling these on other flea market sites, so I may remove this listing. Thank you for your understanding.