Because Sunbrella fabrics are woven, they are also highly breathable, which is why they dry quickly with only air exposure.
It's also important to know that Sunbrella fabrics are treated with a fluorocarbon finish, which enhances water repellency. This finish requires replenishment after vigorous cleaning. Sunbrella fabrics do not absorb water and are designed to air-dry very quickly — usually within a matter of minutes. A clothes dryer is not necessary and will often overheat and shrink the fabric.