It is one 20% off per membership. I used mine on the new Keen bike shoes and my ex-husband's (it pays to be friends) on a dog bike trailer. You need to find someone who hasn't used it AND will give you their membership number. That will probably work on a private message. Good luck! I bought one of my kids new shoes there (adult 9s so muy espensivo) so I would have loved to have had even another!