I haven't been in the ice/mud with mine, but just water and they grip great. I always preferred carpet because I didn't like slipping around, but boy was this one of the better mods I've done. I love just jumping in and not worrying about getting the floor or mats dirty. I remember the old stock rubber mats in my 92 chevy, they were slick. And ever since then I've always had carpet, but this is definately the way to go. And I can't say enough about the fitment and how the sides go up to catch all the water etc.
Oh and did I mention I've only had the mats a week and the truck 3 weeks.
But I did have an 05 with the carpet mats for almost 2 years.
Oh and did I mention I've only had the mats a week and the truck 3 weeks.