I'm Recommending a backpack.
 

Osprey Stratos series.

I just got a Stratos 24, they make larger ones, & the thing is darn comfy, does have helmet clearance, & solves the sweaty back problem we'll all be running into as things warm up.

http://www.bikeforums.net/showthread...ghlight=marmot
Heheh

Osprey just makes great packs. As someone who has done quite a bit of backpacking and hiking for my young years, I've never seen an Osprey I didn't like.

I'm using an "epic" for my urban use right now. it's one of their less heavy duty models, though with Osprey, they can't seem to help making something I wouldn't mind taking into the wilderness. Very durable, very comfy, and tons of space. Kicks the butt of the North Face I used to use.

good call slvoid, i got my Osprey in about the same color as well ('tangerine') ,although the Osprey comes in more sizes & i still think i'd like the Ospreys suspension method better than the marmot. guess i need to get picks up in my post to be cool though, you did set the bar high.

Slvoid... let me guess. She got you that too. How did you finagle that one out of her?

+1 on Osprey packs. Best pack I've ever had, and I've had a lot.

Is it that osprey one with the humongous mesh panel in the back? I tried it out at the shop and I found that thick sheet to bow back too much.

You're gonna need a 7 liter pot.

Hehe no, I bought that with my own money. She actually didn't want me to get another bag so I did it behind her back.

What model?

I have the Flux, which is a non-cycling, general purpose backpack, so I still have the sweaty-back problem. But the overall fit and quality is excellent, and if I were to buy a cycling pack, I would buy an Osprey.

+1 on the Osprey daytool packs. I have an Osprey Focus (slightly larger than the Flux) and I think it's the best daypack I have ever owned. I bought it for a hiking pack that I could take travelling on business trips and safely carry a laptop inside. It's great for bike commuting, I really don't notice that the pack is there when I'm riding. I put a Camelbak unbottle in the hydration/laptop sleeve. I have noticed the top of the pack sometimes bumps against the back of my helmet when I ride on the drops, but not enough to be annoying.