The Atlas Executive Holdall from Waterfield is an excellent large-ish capacity shoulder bag designed to help you shift seamlessly from tech gear to gym gear.
Other Bags to Check Out:
Easily one of my favorite bags for serious urban and outdoor daily carry. The Alpha 31 from Remote Equipment is a delight to use and will remain durable for years and years.
The Tech Sling from Aer boasts a solid amount of organization and space for loose gear. Features a space for a 13" laptop.
The Mercator from Cecilia is an absolutely gorgeous, hand crafted backpack with loads of organization, customizable photo and tech storage and great external access.
A very sturdy and functional sling for a very affordable price, the Metromonger sling from Greenroom 136 is one every sling-person needs to know about
The Akra backpack from Arcido is designed to be a minimal travel bag with clean looks and plenty of organization and pockets.