We can think of more scenarios where you need this Hip Pack than where you don't-music festivals, amusement parks, tourist destinations, farmers markets, biking around town, Everything you'll need zips into the two secure compartments. You might want to get two Hip Packs just in case. Dimensions: 10 x 5 x 3 [ 25 x 13 x 8cm ]. Maximum waist belt circumference 48 [ 122cm ]. Two zippered compartments. Fleece lined sunglass pocket. Adjustable waist belt. Dri-mesh backpanel. Limited Lifetime Warranty.