MINAMALIST DESIGN: Designed and engineered for runners by runners – the lightweight patented AirFlow Lite Waistpack patented belt design is breathable, minimalist and offers just the right amount of storage while staying non-chaffing and bounce free. Ideal for running, ultra-running, hiking, endurance training, trekking, and walking. ZIP STORAGE COMPARTMENT: Easy access to zippered main storage compartment with internal divider. Easily store nutrition, gel packs, ID, cash, credit cards, and keys on-the-go. Storage: 8” x 3.5”, weight 3.3 ounces. BREATHABLE: Unique design wicks moisture away from the body and circulates air between the body and pack for a cool, and comfortable waist carry that eliminates sweaty hot spots. COMFORT FIT: Breathable, fully adjustable stretch-comfort waist belt secures the pack comfortably around the waist, while the breathable 3D mesh keeps you cool and comfortable for distraction-free jogging, gym workouts or any run. QUICK RELEASE: Easy on/off with low-profile, quick-release buckle. The patented AirFlow Lite design combines cushioning, a moisture-protective compartment for big phones, a second separated lengthy storage pocket with a fully breathable construction. Forgiving, adjustable waist belt and custom low-profile spring-lock quick release buckle get runners set with the perfect amount of storage for any run.