Dimensions: 13.75"L x 19.75"H x 8.25"D Weight: 4.96 lbs Volume: 18L Four, 360 degree spinning wheels Zea, previously known as Echo, is the perfect lightweight solution for school days or travel. You will love gliding along using the retractable handle and spinner wheels. You can also pop out the backpack straps and throw it on your back, too! Zea is also equipped with a handy laptop compartment and lots of pockets, inside and out.