The ready made shade sails have been treated to be waterproof or water resistant, and we don't recommend you machine wash but wipe down with a mild detergent such as washing up liquid. A wash down with the hose would also work.
It is recommended that the made to measure shade sails are washed by hand, however, they can be cleaned on a low hand wash or cashmere setting on the washing machine without damaging the UV or waterproof coating.
We have a video on the Blog and Info page of our website which provides information about cleaning the sail and storing for winter:
https://clara-shade-sails.myshopify.com/blogs/news/how-to-clean-your-shade-sail-and-fold-pack-away-for-winter
May 20, 2025