These are Japanese vintage nylon pants. A vintage item from around the 1970s, using YZIP. The full-length side zippers are a very rare design. There's a snap button at the top. The double zippers allow you to open and close from the top and bottom, making this an interesting item with a wide range of silhouette variations. The flared silhouette, despite being nylon pants, is also a valuable point. Items with YZIP are also very rare. These nylon pants also have a clean impression due to the center press. There's elastic in the back, allowing for some adjustment. I believe these were probably ski wear or something similar at the time, but items with this kind of detail are extremely rare and valuable now. There are no noticeable stains or damage, but please be aware that this is a used item. Outer fabric: 100% nylon Lining: 100% nylon Filling: 100% polyester 〈Approximate Size〉 Waist...34cm Hips...50cm Rise...25cm Inseam...73cm Silhouette...Flare Color...Blue Length...Full length Pattern/Design...Solid Color...Blue Pant Length...Full length Material...Nylon