I use a Canon backpack that has a nice padded and sealed laptop compartment. I don't trust my laptop in the panniers. I use a genuine military issue pack for trail riding/packing. It carries everything from survival gear to luxury items (yeah right). I've done wilderness EMT and S&R so hence the huge pack. But for around town, I love the Canon. Good quality and utility for a fair price. I should add. The last time I went pack hunting I was overwhelmed by the selection available and all the neat features you can find. But quality was always an issue. Good luck