If you don’t want to pin your race bib on your shirt, the Nathan Race Number Nutrition Waistband offers an easy solution. The race number attachment holds your bib securely so you don’t have to poke holes in your performance gear, and three elastic loops give you a place to put some gels or other nutrition products. Made from 100% polyester, the Nathan Race Number Nutrition Waistband is the simple and lightweight way to attach your number without damaging your clothes.