My first Undercover went thru 3 different Chevrolet trucks. Only reason for buying a new one was Chevrolet changed bed sizes. This time I opted for the SE style instead of the original. I have had a roll-up and a slider and they both leaked. The Undercover never leaks, is light weight and as safe as a cover can be. It also helps prevent tail gate theft. Best cover out there as far as I am concerned.