Running Belt Sport Bag(black,red,blue) (blue) used for triathalons, marathons, running races or just out being active. 1.5-inch wide elastic belt is light weight and is fully adjustable (27" - 43"). waterproof fabric and zipper materials adjustable waistband could fit body best,it could be hide in the coat small size,big capcaity,it could hold phone,keys,mp3,money,camera.