Acne Studios Boltzer Patchwork Sneakers NWT Size: 37, fits US 6.5-7 Brand new in the original box. Come with tags and dust bags. Retail for $670. The Boltzer is a standout patchwork footwear style boasting a luxe calf leather upper. Below, a grippy rubber outsole ensures optimal traction, while a side tie detail serves as a distinctive accent. The shoe is branded with logo detail on the footbed for an authentic finishing touch. Upper: Calf leather Lining: Nylon, Polyurethane Sole: Rubber, Thermoplastic Polyurethane Patchwork design Side tie detail Grippy rubber outsole Rubber toe bumper Logo detail