This is a simple product called Rival Field Messenger

The Rival Field Messenger packs all your campus, studio or trail essentials inside a unique design of soft, textured leather - with loads of character to spare. Two exterior pockets keep all your smaller items handy, and the roomy interior offers even more space.

• Leather construction.
• Adjustable fabric carry strap.
• Dimensions: 18" x 10" x 4".