Acura sells all-season floor mats. You can get them through Tim at
Discount Honda and Acura parts and accessories - Hondacuraworld.com. He's got *very* good prices.
Alternately, you can check out
WeatherTech Automotive Accessories - Car Mats, Floor Mats, Cargo Liners, Side Window Deflectors and More as they also have some very good all-season floor mats that are custom-fit to the vehicle, like the Acura ones.