Sorry, wasn't really sure where to post this.

I'm looking for a business 'bag' of sorts, to go to work with but is made to fit nicely on a bicycle.

Anyone know of something like this?

I need it to be spacious enough to carry some clothes, a laptop and perhaps even a squash/tennis racket (although that's not that important) and it has to look elegant enough to carry into work without looking like a bicyle bag.

Thanks for any help!

This one should do the trick.

https://www.workbycycle.com/store/in...ct_detail&p=11

That is slick abxba. The only one that I knew of was the Arkel briefcase (which is double the price).
https://www.arkel-od.com/panniers/bri...asp?fl=1&site=

You might also look at the Ortlieb "Office Bag" (e.g., https://www.rei.com/product/768571). Expensive, but very functional. It looks reasonably professional (I think). The silvery fabric is a little different, but it is no less professional than -- say -- an expensive aluminum attache case. There is no flap to cover the hardware that mounts the bag to the rack - but I'm not sure who, besides Carradice (e.g., https://www.wallbike.com/carradice/bikebureaunew.html), offers that. The WorkByCycle looks pretty nice, but the Ortlieb attachment system has worked far, far better for me than bungees. It is both easier to attach and remove -- and it is more secure. (Note: the Carradice uses an attachment system similar to the Ortlieb, but I have not used it myself.)
Ortlieb also has more conventional "Downtown Pannier" (https://www.rei.com/product/799759) that uses buckles on a flap rather than the Ortlieb roll-top closure. I've actually been surprised, not only at how easy the roll-top is in practice, but also how nice it is to have a briefcase that stands upright and open -- almost like a portable file drawer. If the portable file drawer held tools, rain pants, and lunch in addition to a computer and quite a few manila folders, that is.

I got one of these delivered just a couple of days ago:

https://www.nashbar.com/bikes//Produc...2_166278_-1___

I found one in amongst the Nashbar returns for $35.

Maybe when the snow melts I'll be able to try it out.

The nice thing about the Business Pannier by Inertia Design on workbycycle.com, is that the bungee mounting system is attached to a panel that the pannier zips to. You can zip your brief case off the panel and leave the mounting hardware on your bike. If you're not able to leave your bike in a secure place, you can unhook the panel from your bike and slip it into a pocket on the back of the pannier so you don't have hooks rubbing against your leg or catching on your clothes as you carry it around. It's a well designed system that doesn't come with a high price tag.

Ortlieb Shuttle is on my list for when I win the lottery.

Arkel Briefcase. Purchase an Arkel product and you will understand where that extra money goes.