There's lots of alternatives to the strap that comes with your camera, like straps with thicker padding. But I'm pretty into sling-style straps, especially for torturous events like CES. Luma's 2.0 Loop is a radically simple, elegant implementation of a sling strap.
The biggest change from the original Loop is the way it connects to your camera. The new pushbutton quick detach swivel connector is built by the same dudes who build similar connectors the Marines Corp (where it's used on rifles).