PUREMATS Nissan Altima Floor Mats 4-pc Set - All Weather Heavy Duty - Crystal Clear - (2013-2018) Computerized Cut system with 3D scan patterns can be well tailored to suit customer requirements The heavy duty clear virgin vinyl mats are 85 mil thick, it's the thickest in the industry and 10 time much stronger than rubber material The vinyl five 1/4 inch nibs keep these mats in place and its texture surface provides non-slip safety It is very easy clean and low maintenance Only Puremats are using 100% clear virgin vinyl material to keep Original look of your vehicle