Birkenstock Arizona Soft Footbed Sandals - New without Box. Size EU 37 US 6 - 6.5 NARROW. The box says these fit US 6 - 6.5, but I wear a US 7 and they fit me well. I love my Francas though, so these have just been sitting in my closet! My Francas are also 37 Narrow. Please let me know if you have any questions, or would like additional photos, and I'll get back to you as soon as I can. Thank you for checking out my closet:)