The navy Outdoor Products Melrose Walking Pack is a great item for hiking, international travel, commuting, sporting events, concerts, and your favorite theme parks. The unisex polyester 3 liter bag fits comfortably around the waist using the waist strap, or it can be worn as a shoulder bag using the padded shoulder strap. The waist belt will fit up to a 52" inch waist with adjustable buckle sliders. A squeezable 600mL (20oz) BPA-free bottle is included. The main compartment is great for storing your gear while on the go. The magnetic front pocket gives you easy and secure access to your essentials and the webbing loop is perfect to attaching various accessories. The headphone port provides cord access while keeping your electronics protected. It is suitable for a senior, adult, teen, and kids. The lifetime guarantee ensures you will be using this Outdoor Products waistpack for many more walks to come.