The Phoenix Backpack is a great weekender trip and travel companion that is also great to be used on a daily basis. It's vintage design allows for simplicity in function. It has a roll-top design and magnetic buttons with a healthy size front pocket for both storage and distinction. Heavy-duty waxed cotton canvas to last over time. 
Specs - 

Measures: W30 x L43 x H11.5 cm. / W11.5" x L17" x H4.5"
Weight: 1.20 kg. / 2.64lbs
Material: 16oz waxed cotton canvas
Color: military green and khaki
Four stranded nylon thread
Upper gap with the magnetic button
Hardware: silver color zinc alloy
Magnetic click for easier closure
Superior handle and padded shoulder straps
Inside pockets
Upper roll top with a heavy metal zipper