Tapp C. Runners Pack Runners Belt EXPANDABLE gear belt 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"). Provide more than ample storage space for energy bars, gels, cell phones, or supplements. A lightweight belt that will provide ample storage and does not bounce! Material: Polyester belt + power stretch mesh gusseted pocket (expandable)