This well-engineered carry-on is made from three-layer Makrolon polycarbonate meaning it protects its contents from the rigors of air travel while remaining lightweight. The SmartLink strap system helps you transport additional Briggs & Riley bags through the airport and a TSA-friendly lock prevents unnecessary delays at security. A set of four double-spinner wheels makes for easy concourse navigation and the waterproof seal locks out moisture. Style Name:Briggs & Riley 'sympatico' Expandable Wheeled Carry-On (21 Inch). Style Number: 5208764. Available in stores.