I've owned 3 ADCO covers for three different trailers - an AquaShed for our hybrid, a Tyvek for our 24' KZ Spree, and now a Tyvek Designer Series for our 19' TT. None have shown any signs of wear, even the Tyvek which covered our Spree over 4 winters ... the Tyvek Designer protecting our current Freedom Express has now been through two Canadian winters and when I removed it on Sat I saw no signs of wear or deterioration. The key is to take the time when installing the cover to pad all sharp edges and snug it down sufficiently that it can't blow excessively whenever the wind may come up. I've been totally satisfied with the ADCO covers I've owned and wouldn't hesitate to buy another should the need ever arise. :B