SPIbelt Adult's SPIbelt, Reflective Fabric/Black Zipper/Reflective Band THE ORIGINAL REFLECTIVE POCKET BELT &reg; The Reflective SPIbelt&trade; will expand to hold any smart phone, keys, cash, credit cards, and even a passport. The Reflective SPIbelt&trade; is ideal for fitness, travel, medical needs, and so much more. It is sleek, secure, and does not bounce. Product Features: Will not bounce. Expandable, secure, low-profile pocket. Comfortable, soft elastic prevents chaffing. Sturdy buckle and glides for even the most active users.