Jon Hart Medium Square Duffel. 

Our most popular duffel is perfect in both form and function. With two compartments in each side and a U-shapped zipper up top, you can stay organized and find what you need when you need it. The trolley sleeve on back makes traveling a breeze. Just slip it over the extended handle of a rolling suitcase and this carry-on compliant bag is ready to roll.

Coated canvas with Natural Leather trim
Fully zippered closures with silver hardware
Webbing handles with Natural Leather detail and silver snap closures
Detachable webbing shoulder strap for easy carrying
End pockets designed to hold the Small Travel Kit
Sleeve on the back designed to fit securely over the extended handle of a rolling suitcase
Carry on compliant

Bag Dimensions (inches): 12h x 20w x 9d