Interchangeable strap and bag.  This combination is 16" x 13.5" with distressed brown with black strap, this one can hold a small laptop/Ipad.    Any combination can work, my staple colors are Gray, Orange, Bone, Brown, and Black.  Seasonally, I will have other colors as well, just let me know what you wish. Timing depends upon availability of leather.  All products are made by me in my Chicago studio.