GU's Heavy Weight Sweat Cargo Pull-On Pants in black. The tag has been removed, but they are new and unworn, only tried on at home. The size is Girls' L (160), but they fit me perfectly, and I usually wear a size M, and I'm 161cm tall. I purchased these in January of this year and have been storing them at home, so I don't recommend purchasing them if you are sensitive to such things. Original price: ¥2,290