The SPIbelt® expands to hold all larger smartphones; including the iPhone® 17 Pro Max and Samsung Galaxy® S20+. 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 SPlbelt expands to carry what you need. • Born in Austin, Texas • 9"× x 2" pocket holds larger smartphones and more! • Fits waist size 25" through 38". . Need a few more inches added to the waistband? Get our Belt Extender. • Bounce-free • Expandable, secure, low-profile pocket • Comfortable, soft elastic prevents chafing • Sturdy buckle and glides for even the most active users • Our Slim belt is available for more petite waist sizes (24" or smaller). Named The #1 Best Running Belt by Wirecutter 🚭🦮🐕‍🦺