The Peak Design Everyday Sling 10L is a low-profile sling bag with enough room to carry a couple of cameras and lenses, plus (they claim) a 13" laptop. The laptop thing is very, very dependent on which laptop you've got: Peak Design says 1.8x21.9x31.4cm are the maximum dimensions, but also advises that "laptop carry may be difficult when sling is fully packed," so, like, don't expect it to be easy. A well made bag either way, with internal dimensions of approximately 6x20x30cm.