I crashed last week and ripped apart my beloved Deuters backpack that I use for commuting -- had a nice wire mesh back to keep the pack directly off my back for hot weather. Was searching for a replacement and came across the Boreas Bolinas and the Boreas Lagunitas. Saw a nice 40% off coupon code on their facebook page:
FBFANS
Hopefully it'll be as good as my Deuters 