The Alpinestars Tech Aero backpack was an expensive purchase (currency conversion to Australia at the time) but when I got it, I saw why!! Anything and everything you can think of has its own pocket and a little label to tell what the pockets are for. I use it everyday in all weather, on a wide and varied range of bikes and the rain cover works a treat (up to 220kmh). . The variable litre capacity is a great feature. The straps are adjustable and comfortable. A back protector can be placed inside the backpack, but the standard, stiff piece of board has been sufficent and very comfortable. . After two months of ownership (12/08) there are no signs of wear to any part of the backpack, which should continue making it a long term purchase. . If you are after a backpack with more features than any other backpack I have seen for motorcyclists, not to mention with cool looks, the Tech Aero is the one.

I received my Tech Aero a few days ago but I can already tell you that this product is fantastic. I put it on for the first time (after working out where all the straps attach) and it immediately felt comfortable, unlike a lot of other backpacks I have tried in the past. The reinforcing in the pack is stiff and I believe it is helping my posture on the bike as well which is another plus. The chest pack which fixes between the two straps provides me with an easily accessable spot for my car park pass as well - no more digging around in my pockets to find the thing!. As Stuart said above, there is a myriad of pockets and they are all labelled, which helps when you first get it. I rode for the first time in light rain this morning and not only did it keep my gear/laptop dry, but because of it's length, it also kept my back dry and this had been a problem in the past for me. If you are a bit hesitant because of the price and are wondering if it is worth it, just remember that with this pack you do get what you pay for - and that is a lot.