Kelly: Bakline, based in Brooklyn, has some surprisingly soft shirts, sturdy bags, and stylish hats that all pull off the perfect mix of sass and smart. While not what you’d consider traditional workout gear, their shirts are so lightweight and soft that you’ll want to wear them beyond your workout. My favorite thing about them is that their messaging is clever and thought-provoking, but it’s never rude. The tote pictured at right has become my…