The Sky master 40 is the ultimate lightweight carry-on soft shell travel bag. It totally zips around to open suitcase style with split top and bottom compartments and is made from recycled materials! This stylish and functional travel series bag lessens our need for oil; helps reduce waste in landfills and soil contamination that results in the production of less pollution compared to if we were to use virgin polyester. It can be used as a backpack or as a shoulder carry gear bag using the optional shoulder strap. Meets approved domestic and international carry-onboard size. Comes with Caribee warranty. Note: Please check with your airline service we cannot guarantee this pack is a suitable size for all services.