We've bought 2 Adco covers since owning our Class C 30.5' in 2007. Designer Series.
The new ones have adjusting straps on the top and bottom for a tight fit in addition to 3 under belly straps. Ventilation openings, Tyvek roof, woven cloth sides.
Withstands blizzards, snow, and ice.
I think the last one was about $400.
Make sure you pad all sharp edges. Gutter downspouts, bumper ends, arms on slide out toppers, etc,
2006 Sunseeker 2860DS Ford V10 5 sp. Torq-Flite w Tow/Haul
Winegard T4 In Motion Satellite Dish
Furion Rear Camera, RecPro 70" Recliners
Mohawk Luxury Vinyl Plank Flooring
2013 AWD Acadia Denali, Blue Ox Equipped