When I bought my Sigma 35mm 1.4, I got an Altura bag as a gift. It has enough space for my camera body, lenses, charger, cables and flash trigger. It is a really good bag for traveling. I don’t know the model of it, but it’s exactly what I need and lightweight.
Sometimes when I travel long distances and I need to bring my laptop, I have another backpack from PORT Designs that I use. It fits my laptop, cables, camera and lenses, charger, flash trigger and also my Wacom Cintiq. A lot of people ask me how I fit all that stuff in there haha. It has the PERFECT amount of space for my gear if I’m on the go. It’s not that recognized as a brand but a lot of my friends have the same backpack.