The Bravo 18 from Remote Equipment is a simple 18L bag featuring minimalist philosophies and strong design chops.
Other Bags to Check Out:
This backpack from Baron Fig is really thoughtful, minimal and useful. Lovely daily carry bag.
The Citadel from Black Ember is a daily carry and gear backpack that comes in two flavors: a minimal, sleek version, and a modular, "customize this sucker!" version.
The Setout Packable backpack from Tortuga is very capable and lightweight for it's price. A favorite to be sure.
The Wilderness Rucksack from Tanner Goods is a gorgeous, artisan, hand-shucked heirloom bag that your grandpa would be proud of (whichever one of your grandpas was more badass).
This is what I call the "badass bargain option." Everything you need in a daily carry, organized innovatively so it stays fun to use, and it's super affordable.