Mudroom Backpacks LLC designs, manufacturers and sells innovative multi-use, commuter backpacks with patent-pending dedicated footwear compartments for carrying an extra pair of shoes separately from electronics such as laptops and tablets. Mudroom is a backpack with purpose; to carry an extra pair of shoes. People transition from home-to-work, during-the-day and to after-work adventures. At times, a different pair of shoes may be needed. And the Mudroom Quartible 18L/20L makes those transitions easier by keeping footwear separate from electronics and personal storage - all together in a single pack. The Quartible 18L/20L is the inaugural product model for Mudroom Backpacks. The Quartibles are commuter-friendly, travel-friendly and day hike-friendly. For product specifications, please see - www.mudroombackpacks.com. Thank you, Mudroom Backpacks LLC (less)