lightweight backpack

Hello guys
I hope this is the right section! I have a question about backpacks.
I have a swisgear Pegasus, I use it a lot for college for books and my laptop and I also travel a lot (planes planes planes) and the only thing I basically carry with me is the backpack with my laptop and clothes. It is a really good backpack, reliable and nice but it is way too heavy and doesn't really hold that many things
So I was thinking about changing it but there are so many backpack that I really have no idea where to start. Basically I would like something about the same size of the Pegasus (so I can use it on domestic and international flights) but way more lighter and that can hold more things inside.
Do you have any suggestion? (I'm in US so I will probably buy it online from amazon or similar)
Thanks everyone for the help.

 

I've always been into the "tacticool" look for backpacks. I'm looking at some right now and from what it looks like, the Pegasus is about the same size, but this might hold more:
Tactical Gear Commuter Pack

this one is a bit smaller
Condor Urban Go Pack NOW AVAILABLE

In my experience, Ogio backpacks are great for laptop carrying, but the space them is lacking.

 

Thanks for the info
Do you have any idea about the weight? That's another crucial thing for me xD

 

I would recommend visiting stores and trying different ones out. You can use that as reference for online buying afterwards

cheers ...

 

my vote goes to targus groove as budget desktop replacement backpack (very light too)! so far pretty pleased and I travel a lot too! I can list you the 20 stuff along with 17" huge laptop that stuffed in this backpack without problems, if you're interested!