Buckle closure The Original SPIbelt is perfect for holding your smart phone as well as keys, ID, headphones, cash, credit cards, or even a passport. Wear it while running, working out, jamming out at a music festival, or traveling the world! This belt is a favorite amongst marathon runners, travelers, and those who require carrying medical supplies such as EpiPens. It’s lightweight, bounce-free, and can be worn under or over clothing. Compatible with phones up to 6½” long including the iPhone 6S.