Right now I use a DURGOD Taurus which I love (Cherry brown switches), and I take it back and forth from work every day I work at the office.
Unfortunately though it’s getting quite heavy for me to carry so often, and I’m a bit worried about its effect on my back.

The laptop bag I use has some pretty good support, so I’m not sure if a better bag would solve the problem.

Are there any travel keyboards that are super light but also have good mechanical switches? As a programmer I need the function keys, the arrows and the keys that are usually above them (Home, Insert etc). I couldn’t care less about the numpad.