I just got these and really like them. They appear to be made very well. Time will tell on durability. They do come with a bungee but are heavy enough to stay on without unless some very high wind. Reading the reviews many stated they wished they had ordered the next size up which is what I did fit perfect.
Greg, Gina & Ginger the rescue dog
2014 Palazzo 36.1, Cummins ISB 6.7 300hp, Allison 2500
TOAD 2008 Jeep Rubicon 4x4, Blue Ox Avail tow bar, RVibrake 3