These are training pants I bought from H&M in the past. They're comfortable, so I also use them as everyday wear. They're US size XS, so I think they fit like a Japanese size S to M. As you can see in the photos, the logo is starting to fade. They are in used condition, but there are no functional issues. I am 170cm tall and weigh 62kg, and they fit me without any problems. Since this is a past product, I don't know the official measurements, so please use my height and weight as a reference.