Think of this as a go-to pack for all the items you need to quickly access like cell phone, food, keys, credit card and ID, etc. Depending on your other equipment you may be able to stash a tube and repair tools as well. The Tank Top has two Velcro & ToughTek cinch straps as well as Velcro OneWrap cinch on the stem to keep it secure on your bike’s top tube without flopping.