I have had at least 6 of these Stormforce covers and if you leave the car outside,all of them deteriorate over a couple of years and rip and tear. The cheaper ones end up leaving a powder all over the car.
The best ones are Monsoon. However they don’t breath and cause condensation under the cover with obvious consequences.
Basically, I use a summer one in summer and the Monsoon in winter but remove it every few days and dry the cover and remove any moisture.
My advice is keep it in a garage.
There are some really nice portable garages and gazebos but strap it down well.