The TruXedo Boat Windshield Cover # TX38FR places the polypropylene against the windshield to protect it from scratches. If you were to put the fabric side against the windshield it could hold particles of dirt and debris. While in tow the cover could then move around which would scratch the windshield if this happens. The polypropylene will not grab hold onto dirt like the fabric and reduces the chances of scratches on the windshield. The fabric/carpet material is used on the outside as... view full answer...
I spoke with our contact at Hopkins and he was able to tell me that the winter protection windshield cover # HM17511 is vinyl and sewn on the edges.
If you tend to leave the windshield cover on 24/7 is may deteriorate quicker over time but in general the product life should last quite a while. There isn't a specific life span for this product because there are so many variables that could affect it's life expectancy.
The information available on this product is limited. view full answer...