You've been on many adventures together, but your trusty daypack just isn't cutting it for your daily rides any more. If you can bear it, make the switch to this low-profile lumbar pack and get the same smart storage and hydration you would with a bulkier bag. It's got an included hydration reservoir to keep you moving on tiring trail rides, as well as 5L of storage, which is certainly nothing to shake a stick at on all-day rides when you need some packable layers along with you.