ONA Bags have always been a favorite of mine, and the new Leather Brixton is no exception. Handmade from full grain cowhide leather, with a light wax coating, it's a beautiful bag that will develop it's own unique character and patina over time.
It's big enough for a DSLR with 2 or 3 lenses, and a 13 inch laptop, which also makes it the perfect size for a photographer with a medium sized mirrorless kit that may need to travel with a laptop or iPad occasionally. It's secured with solid brass hardware, and is available in Antique Cognac (shown above) or Dark Truffle, which is also gorgeous.
These guys know bags, and this is certainly one that will last you a lifetime. Your kids will be fighting over this bag in 40 years.