The Briza is an everyday ankle boot with a faux buckle accent. Under the buckle is a hook and loop closure, there are no zippers, this is a slip in boot. The Briza comes with Naot's removable, anatomic cork & latex footbed for all day comfort. The Aura Collection features a 1.5" polyurethane sole with a metal shank which is extremely lightweight, durable & abrasive to prevent slipping. This collection uses a hand-sewn Strobel construction making it strong and extremely flexible.