Biking and Hiking Pack?

[Keatan]

I'm currently in the market for a new backpack, however, I am on a budget.  I would like something that would be large enough for lightweight backpacking up to 4-5 days but at the same time not be too big for bikepacking.  Right now I have the Osprey Talon 33 in mind, any other suggestions or ideas?

[ScottM]

Talon 33 is a good choice, I think.  Another might be the Atmos 35:

http://www.bikepacking.net/reviews/packs/osprey-atmos-2535/

I have the Atmos 25 (I don't think that one is made anymore) and it worked well on a few ~3 day backpack trips.  It was a little low on capacity, but I was able to strap my pad and sleeping bag to the sides using the straps.  I liked having the internal frame on the Atmos for support when hiking, that's why I mentioned it as an alternative to the Talon.  Atmos is not bad for riding, but I find the Talon more comfortable.

[Slim]

Take a look at the Granite Gear ultralight rolltop models http://www.granitegear.com/products/overview/backpacks/ultralight.html or, if you want beefier fabric, the Alpine Vapor http://www.granitegear.com/products/backpacks/technical/alpinevapor.html. They are light, have decent capacity and with the rolltop and flat lid they are not to high for bikepacking. Tall backpack hit you in the head when braking or looking up.
Depending on the size you need, they have beefier hipbelts, but they are interchangeable I believe so you can add a thinner belt to make them more flexible and comfortable for biking.

[heckboy]

http://rivendellmountainworks.com/index.html

  I have always been concerned with the ultralight materials vs. the AZ desert.  I have been using a Rivendell Jensen.  Super comfy, SUPER bomber (11oz cordura) and at 2lbs 3oz pretty friggin light.  It's frameless and the inventor frequently turned cartwheels with the pack on to show how stable it is.  Check out the classic Jensen pack sewn to order http://rivendellmountainworks.com/index.html