I usually keep my quad in the shed but getting in and out is very difficult. So I got this to protect for a year if I plan to use it regularly. It's waterproof and the elasticated bottom is essential for protection in windy conditions. It seems to run true to size so don't go too small. My ATV was within 1/2 inch of the size of the trunk I ordered and it was perfect. It's rained almost every day since I put the blanket up and it's still dry. It will also help with the sun. Highly recommended.