any suggestions on a backpack with good back airflow?

Ideally, I'd like a backpack that's similar to those backpacking packs like the Osprey Atmos... those are awesome. If they can put the anti-gravity suspension system on a camera bag... those would be fire!

Any brands similar to this? Or lets build one??

I've only seen pictures of the osprey atmos, but check out Fstop backpacks. It might be what you are looking for. Or you could get the Fstop icu and put it in the osprey bag.

I have the f-stop Guru... not great with airflow.

Check out the Manfrotto off road hiker 30L, or the Clik elite Contrejour 35. They're quite a bit smaller than the Atmos though. Both are side-loading with half the pack for other stuff (open compartment).

http://store.lowepro.c​om/protactic-450-aw

Love this bag.. Hiked 5 miles with it on, very comfortable

It doesn't have to be as big as the atmos, I was just using that as a reference for the back airflow

The monfrotto looks nice!

FarmerTed1971 wrote in post #17979111
I have the f-stop Guru... not great with airflow.

Likewise, I also have this bag...whilst it's a great backpack, airflow sucks...

http://www.mindshiftge​ar.com …rofessional-padded-insert

PLUS

http://www.ospreypacks​.com …/manta-ag-20-MANTA20.html

equals comfort...... QUOTE!!

Get out the door for a long walk in the hills with Osprey’s Manta AG™ 20. The Anti-Gravity (AG™) suspension system—combination of LightWire™ frame, mesh backpanel, BioStretch™ shoulder harness and AG™ hipbelt—distributes weight to keep you comfortable no matter how far you roam. Dual upper and lower compression straps help stabilize the load and provide add-on storage options if you have extra bulky gear.

this might work for you... ?