Amazon.com: Targus Classic Slim Briefcase with Crossbody …

My Toshiba Satellite laptop which is 15″ wide and 1.5″ thick is a tight fit. It could work, but the biggest problem is its difficult to get it in and out because you need another hand to hold the zipper flaps open on the ends, especially to get it out or it hangs up. My laptop is 10″ tall and that dimension fits, but I would say its the max.

https://www.amazon.com/Targus-Classic-16-Inch-Laptops-TCT027US/dp/B005G2YP6M