i really can't comment too much. i just had to replace some slide toppers that were 6 years old. not because the fabric failed but the seams pulled out. i replaced with acrlylic fabric from stone vos. they have a 10 year warranty. but what i liked about the replacements was that both seams were double sewn, unlike the oem topper that only had one seam.
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2015 cardinal model 3825fl
2015 dodge ram 3500 dually