The Transit Sling from Heimplanet is a smaller daily sling bag made with an interesting and nice feeling outer material.
Other Bags to Check Out:
The X25 from RiutBag is an utterly functional travel and daily conversion backpack that also has an important security feature.
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 simple, no bullshit daypack with just enough pockets and organization for modern life.
The Everyday Messenger from Peak Design is a delightfully innovative messenger, with the capabilities to be used as both serious office bag and adventure photography/drone bag.
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