A standard yoga belt is about 6 feet or 2 meters in length. The belting material may be cotton or synthetic but the buckles are generally metal. Like blocks they come in a variety of colors. Special-use belts are available in different lengths.

Belts range in width from about 1 inch, or 2.5 centimeters, to about 2 inches, or 5 centimeters.

There are two basic types of buckles, “C”, “D”, or “O” ring closures and Iyengar-style bar closures.

The “C”, “D”, and “O” ring belts have a pair of metal rings at one end. CDO-ringsThe other end of the belt frequently has a metal tab to keep the fabric from fraying.CDO-rings2 The tabbed end of the belt is threaded through the opening of both rings next to the belt, then the rings are separated and the belt is threaded between the rings. When pressure is applied to the sides of the resulting loop, the rings are drawn together and friction holds the belt in place. To loosen the belt the rings are held apart while the belt is drawn through. Sometimes the rings slip and the belt pulls apart. With wear the metal tab may work loose from the end of the belt.

The Iyengar-style buckle is a metal rectangle with a sliding bar. IyengarAThe belt is fastened to one side of the rectangle. The belts frequently have a fabric tab to keep the end of the belt from fraying. The slider on the buckle has a smooth upper side and a tabbed underside. To make a loop; the end of the belt is IyengarBthreaded between the belt and the slider, over the smooth side of the slider, and down between the slider and the outside of the buckle. When pressure is applied to either side of the loop the slider is drawn against the outside of the buckle, locking the strap in place. To loosen the belt the outside edge of the buckle is lifted easing pressure on the strap and letting it slide through.IyengarC If the belt is threaded over the tabbed side of the slider it may catch on the tabs making it difficult to release the buckle and fraying the fabric.