WaterHog Car Mat - Classic Pattern Large Full Set (4 pc) WaterHog Car Mats contain dirt and water to help keep your vehicle clean. WaterHog Classic Pattern offers a more traditional appearance and features a multi-tread set for ideal performance. It's multi-directional diamond pattern throughout the body of the mat enhances scraping abilities while horizontal ridges are placed where the mat is commonly contoured upward as the mat sits beneath the pedals. For cars, crossovers, mid-sized trucks and small SUVs, use standard front mats. For full-sized trucks, large SUVs and mini-vans, use large front mats.