Navy Pinstripe Wool Satchel by WoolyBison on Etsy:
"This satchel will fit a 13' MacBook quite nicely, with room for its accessories and a book or two. ***This bag is ALSO available in a 15' MacBook size (13 1/2' x 9 1/2' x 2 1/2').*** It also works well as a day-to-day book bag or satchel for a man or a lady. There's an extra pocket along the front for your extra things. The outside is navy blue pinstripe wool. The bag is lined with light blue cotton twill, and includes a full-sized zipper compartment along the back wall of the bag. The base of the bag is lightly cushioned. The brown closure straps are recycled from a vintage leather jacket, and closes with burnished silver snaps. For extra large loads, there's an extra snap. On the rear, there are two leather bands which will keep wear & tear to the very minimum. The 1 1/2' wide strap is fully adjustable. All of my bags are fully interfaced, and topstitched for durability."
DeShawnMarie.com
