It's made of high end canvas and superior stitching. Troop bags have been famous for decades for their rugged construction. They are in such high demand that their online store is often sold out of the popular models. It's wide enough to hold your laptop, and all your other on-the-go essentials. This bag is BOMB proof. Seriously. I bought my first London Troop bag over a decade ago. I bought this one at the same time as an eventual replacement for the first one. I've never used this bag as my first one still looks nearly new, and is still going strong. It's no exaggeration to say that you will likely die of old age before you ever wear out this bag.