Is this an external frame backpack? If I...
Is this an external frame backpack? If I needed something I could theoretically check at the airport, would this work?
No, this is an internal frame pack. The dimensions are: height 23", width 13", depth 9.8", so it could even be used as a carry on. As a checked bag, as with any pack, you'll want to secure (cinch down) the waist belt and shoulder straps to keep it from getting hung up in their equipment.