I don't tow my pontoon except to seasonally launch and take out once a year. I did tow my previous boat - a bowrider - and did have the cover rip off on the highway, taking the support poles with it. Ripped out 16 snaps when it happened and fortunately there wasn't a car close behind me. I wouldn't tow without a dedicated trail or cover with straps.I guess I have been really lucky. I pull my boat on the interstate for an hour one way( Centerhill) to one lake and ( Dale Hollow) 2.5 hours at 55 mph speeds to another lake with my cover on for the last 4 years. Am I beating the odds? It doesn't seem to stress anywhere and I'm sure if a snap was to come loose it would not be good. But I love my cover it keeps the bugs off my beautiful interior.