Patented Five-Shelf Shelving System To Keep You Organized Easily Accessible USB Charging Port For On-The-Go Power Frictionless Wheels That Barely Make a Sound TSA Approved Three-Digit Lock Unbreakable Polycarbonate Shell And Aluminum Frame Ergonomic Handle For Maximum Comfort and Control Cleans up 6 lbs of ocean-bound plastic from coastal communities. Interior Shore-Tex® lining, made from 100% recycled plastic