Four years ago my wife bought a Lexus ES300h and I got a RX450h. I installed WeatherTech deep floor liners in both, first time using them. We live in Oklahoma so summer days over 100 are common but because of covid we were both working from home and vehicles spent very little time out in the sun. Originally the liners fit perfectly but over time the sides have curled in and no longer fit tight allowing grass, gravel, etc. to collect between carpet and liner. We have been very disappointed with them and would never buy WeatherTech again.