Fitletic Race Bib Belt with Gel Loops - Race 2 RACE BIB BELT: It can be used as a triathlon belt, trail running belt, marathon belt, ironman belt, 5k running belt, 10k running belt, or any other kind of race number belt. COMFORTABLE: Ultra-soft dual-adjust waist belt is super comfy and lightweight. GEL LOOPS: Carry up to 6 gels for quick and easy refueling. ONE SIZE FITS ALL: Stretchy fabric is adjustable to up to 60 inches. HIGH VISIBILITY: Reflectors for night running safety.