Chon endorses Ibanez guitars and Overdrive Straps guitar straps. Trench coats often have cuff straps, raglan sleeves, shoulder straps, and a belt. Infantry uniforms had red facings on tunic collars, shoulder straps and trouser stripes. Stays could be strapless or use shoulder straps. Cavalry regiments wear shoulder chains in place of shoulder straps. Officer rank insignia are worn on shoulder straps or shoulder boards. The simplest backpack design is a bag attached to a set of shoulder straps. Constables wore aluminium bars at the outer edges of the shoulder straps. There are also pumps with ankle straps. It supports two cups that are usually held in place by two shoulder straps. Another problem arises from the shoulder straps of standard bras. No. 33 shirts as enlisted men except with the addition of shoulder straps. Sandals might also be of wood, with leather straps (, ). Tyrer has developed a bra design with crossed straps in the back. These include rubber straps, plushies and charms.