I've only worn these twice outside since purchasing them from the shop, but I've kept them in my closet because I didn't want to wear them out. They are authentic. The front can be opened and closed with the large zipper and button at the crotch. Please ask any questions before bidding. Waist: Approximately 39 cm (measured flat) Inseam: Approximately 74 cm *Also listed on other sites, so I may cancel the sale if they sell there first.