Good used condition. No significant tread wear. Only worn a handful of times. Birkenstock Essentials Madrid Scuba Yellow Size 37 Adjustable Sandal Slip On US women's 6-6.5 The Madrid EVA lets you take the iconic style you love wherever water is found. Made completely from ultra-lightweight EVA, this style is water-friendly and flexible. Experience the benefits of the anatomically shaped footbed, whether you're headed to the gym or the pool. Good pre owned condition!