Outside Furniture Can You Keep Rattan Furniture Outside?

Can you keep rattan furniture outside? - outside furniture

I have a rattan love seat is upholstered fabric. Obviously the cushions and the structure that supports the cushions should not be wet. However, I wondered if I stay out of it and you do not use cover, if it be beautiful. I know nothing about such things. This is the first time that I could hold something. Any advice would be very grateful. We do not want to ruin the furniture.