I've had this waist pack for several years now. I use it for everything. I load it with bike gear when I want to make sure my bike computer, radar unit, and light all need to be organized. I use it to pack rain gear when it stops raining and I want to take it off, so I stuff it into this pack that looks small, but will hold both a jersey and a rain jacket (if you pack it correctly). The pockets let me separate small items in the outside compartment, change and keys in a different one and protein bars in the netted compartment. I use it around my waist for biking or hiking or as a sling bag in an urban setting (like traveling in European Cities). The waist belt is large enough to convert the bag into a sling bag if necessary. I really didn't think this bag would be used more than for a hike, however it goes with me everywhere.