This belt has been dubbed one of the best belts for marathons as it has elastic loops to place gels so that they are easily accessible. The SPIbelt Performance Series is perfect for the long-distance runner, adventure racer, or endurance athlete. Not a marathon runner? No problem! This belt can be used by anyone who may have a use for the elastic loops! Clip-on keys, masks, pepper spray, etc. Weather-resistant zipper and pocket to help keep essentials safe from the elements. With an increased pocket size and four gel loops on the elastic band, you gain additional space to accommodate a larger phone (or just more stuff). Holds the iPhone® 13 Pro, Samsung Galaxy® S20, and Google Pixel™ 5. Bounce-free 4 loops for energy gels Weather-resistant pocket and zipper Comfortable, soft elastic prevents chafing Sturdy buckle and glides for even the most active users Pocket expands to 9″ x 4″ x 2″ Fits waist size 25″ through 38″. Need a few more inches added to the waistband? Get our Belt Extender. IMPORTANT: This product is not waterproof. Items may be exposed to moisture. We recommend the use of a waterproof aLOKSAK® re-sealable bag if using with electronics or other small personal items that must remain dry. We suggest turning off electronics to prevent internal heat and moisture build-up.