The SPIbelt(R) Monochromatic Pro expands to hold larger smartphones, including all current models of iPhone and Samsung. This fitness belt is called one of the best running belts for marathon runners, but its use doesn't stop there. It is perfect for walking, working out, travel, medical needs, and so much more. Keeps all your exercise accessories, headphones, keys, ID, and credit cards safe, secure, and close at hand. The SPIbelt Monochromatic Pro expands to carry what you need. Construction: Born in Austin, Texas 9? x 4? x 2? pocket holds larger smartphones and more! 1.5" wide elastic Bounce-free Expandable, secure, low-profile pocket Comfortable, soft elastic prevents chafing Sturdy buckle and glides for even the most active users Fits all phones including iPhone and Samsung Named The #1 Best Running Belt by Wirecutter