Product review (5 stars): The only choice. The off brands just don't cut it. Bargain in the long run.
I have purchased (sometimes on purpose and sometimes by accident) several different brands. The off brands just do not do the job well and/or they don't hold up. These I can make last the entire season (Long Island: from mid-autumn to mid-spring) by washing them out about once-per-month in the tub or a bucket with some dish soap and water. I do this when they get full of minerals and quick wicking up the water. Another trick I figured out is that I flip it over once in awhile. That keeps the top from drying out and seems to make it last longer between washes.