Thank for the advice everyone.
Maybe I'll make pack just for cycling. I was using a regular backpack, but I'm riding 40-50 miles a day and it's tough on my shoulders. You wouldn't think it would be so bad, since you're hunched over, so more of the weight is on your back than your shoulders, but it is. I was hoping I could make something with wider more comfortable straps and maybe a hip strap. I also need quite a bit of space for my laptop, books, change of shoes, water, lunch and change of clothes.
With my old bike I had a rack and panniers, but that isn't an option with a carbon fiber frame..
I might still try making an overnight pack that I can also use for school. I'll probably use the "outdoor fabric" unless anyone has had any bad experiences with it.

Edited by Roach_ (08/23/13 04:39 PM)