I purchased these no-tuck student pants from the online store "Gakuseifuku no Nishiki" (with standard mark). They are made of easy-to-care-for, thick 100% polyester♪ They are jet black, looking almost like wool. I only wore them for special events, so they are in excellent condition, having been worn less than 10 times. There are traces of the hem having been undone, so they can be used again if you have the hem re-finished. Flat measurement size: Waist: Rise: 29cm Inseam: 66cm Leg opening: 20.5cm