I put in a set of WeatherTech mats and they are really snug to the floor pans, so much so that they help hold the carpet from sliding around.
2015 Tank JKUHR 6 speed
ATX Ledge Wheels & Nitto Terra Grappler G2 33's
1" Tereflex front leveling pucks
2010 Black JKU 6 Speed, Tint, Grille mod, Bedtred, Hella's, Grabars