R&L Racing Heavy Duty Universal Black Water-Resistant ROOF TOP Cargo Carrier Bag Travel Luggage Storage Fits: Universal Fit For Vehicles With Cross Bars / Roof Racks , Side Rails Or Naked Roof Top Roof Top Cargo Carrier Bag With Straps & Buckles Bag Size: 43" x 34" x 16" . Made Of Heavy Duty Canvas Materials With The Combined Of Straps & Buckles , Provides Strong Support & Stability To Withstand Extreme Road & Terrain Conditions. It Can Be Place At Anywhere Such As Roof Top , Trunk , Truck Bed , Hitch Mount Or Inside The Vehicle That Fits This Cargo Carrier. Large capacity design stores up to 13 cubic feet Application: Universal Fit For Vehicles With An Existing Roof Side Rail System ( Do Not Fit Flush Mounted Or Round/Oval Shaped Roof Rails And Do Not Fit Factory Rails If The Height Is Over 1 1/2 Inches. Please measure the dimension of your factory roof rail to make sure our clamps is big enough to fit your application )