"Amphipod® AirFlow MicroStretch Plus Belt: The Amphipod® AirFlow MicroStretch Plus Belt™ is a unisex running belt designed for athletes who need lightweight, secure storage during training runs, races, and everyday workouts. The expandable main pouch stretches to more than four times its resting size, so you can carry your phone, nutrition, or other essentials without noticeable bulk. At 9"" x 2"", the belt stays compact against your body while delivering meaningful storage capacity. The fully adjustable stretch belt fits a wide range of body types, which means runners of all sizes can dial in a secure, no-bounce fit that moves with you.What makes this belt practical for race day and long runs is the combination of thoughtful storage and stability. An internal divider lets you convert the main zipper pouch into a larger single compartment when you need extra space, while the additional AirFlow MicroStretch™ pocket provides a second storage zone for separating items. Race-Lite™ number tabs let you pin your bib directly to the belt, so you can move from training to competition without switching gear. High-visibility reflective details support low-light running, adding a practical safety element for early morning or evening use.Why Our Fit Experts Love It""I grabbed this belt for a long run where I needed to carry my phone and a couple of gels. It stayed put the entire time with zero bouncing, and the expandable pouch handled everything I needed without feeling bulky around my waist."" - Sean, Road Runner Sports Fit Expert, Chula Vista, CAWho It's Best ForThe Amphipod® AirFlow MicroStretch Plus Belt™ is best for runners and athletes who want to carry essentials without dealing with bounce or excess bulk. It works well for daily training, long runs, and race-day use, and suits anyone who prefers a waist pack over handheld storage or larger hydration vests. If you run in low-light conditions and want reflective visibility, or if you need a belt that adjusts to fit your body comfortably, this is a solid choice. VIP Family members can take the AirFlow MicroStretch Plus Belt for a 90-Day test drive with our Perfect Fit Guarantee."