SlimFold® Sling Pack is a minimalist bag that combines the best of a messenger and sling into one ultralight package.
Fits iPad Pro 11" and iPad Air 11" with Magic Keyboard... or other similarly sized devices. Great for sketchbooks as well if you're analog.
It stands on its own when you set it down...
And provides weatherproof protection that doesn't make it look like you're going hiking...
One feature added based on backer feedback was a reversible shoulder strap... so it can be optimized for carrying on either shoulder. Here's a demo with details: