What happens next?

How to clean sunbrella cushions
Check for a manufacturer's label.
Examine your cushion seams-the manufacturer's care label is usually sewn into one of them. If your cushion still has a care label attached, read the instructions provided before you proceed with cleaning.

Available options:
[1]. If you see your cushion having a care label on it, check it again to make sure it actually has a care label attached, or that your cushions were properly washed before you put them back on. If you ever don't see a care label label handy, ask a retailer for a care label..
[2]. If your cushion does not have a care label, look for a mold-resistant sticker on it or print it onto scrap fabric. Mold-resistant stickers can sometimes damage the material beneath..
[3]. Some cushions may only list repairs on the manufacturer's label; others may only list treatments. If your cushion is old or worn, and decals are often covered by the manufacturer's care label, consult an upholstery care label..
[4]. Make sure you stay within those guidelines, or you may void your warranty. Create a mild soap and lukewarm water cleaning mixture..
[4].