Garter belts are worn around your waist and come in a variety of outfits, with four or more adjustable straps to hold up the stockings. Because of that paying attention to your waist size is very important. Also, many garter belts have straps that are too long to properly support stockings, unless you are 5'8" or more. Make sure the straps are adjustable and fit your size. Some advice at this point: chose metal clips over the cheaper plastic clips, they simply last longer. The number of straps can also be of importance. It all depends on what stockings you are wearing: Stretch stockings usually require only a garter belt with four straps to keep them in place, stockings made from non-stretch material (like nylon) on the other hand require at least six straps to keep them in place. And if you are on the rather large or heavy side, you definitely want to chose 6 or more straps. If you prefer the comfort of wearing your stockings very high, get a garment which has short or even very short straps.