Hi All,

I know there are tons of threads asking for this same question,
and trust me I tried several ones that was recommended in this thread.
Unfortunately, most of them didn't fit my need.

I'm looking for a pannier that satisfies the following requirement
1) Must have the shoulder strap (or something I can use it like a back pack)
2) Must have bike mount like panniers.
3) Spacious enough for 15" laptop, towel, clothes.
4) must be comfortable

So basically, I like Timbuk 2 messenger bags, but I wish I can hang the bag onto the rack.
I tried Ortlieb Office bag, but this bag is somewhat inconvenient.
The shoulder strap was not attached on the center of the bag, so when I put heavy laptop the bag is skewed and doesn't feel comfortable.

It is really hard to find a pannier that can be also used as a backpack or a messenger bag.
Is there any other product you guys recommend?

Thanks in advance.