The SPIbelt® expands to hold larger smartphones; including the iPhone® 13 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 SPIbelt expands to carry what you need.Details: Most belts made in the USA: Austin, Texas 9″ x 4″ x 2″ pocket holds larger smartphones and more! Fits waist size 25″ through 38″. Need a few more inches added to the waistband?Bounce-free Expandable, secure, low-profile pocket Comfortable, soft elastic prevents chafing Sturdy buckle and glides for even the most active users