You will also need some fixings to go with this. Got a sail shade the other day and after a bit of research went for these. Very happy with the quality and price. Thought I'd post as it may help someone. https://www.outdoorvalue.co.uk/99834-woodside-sail-shade-fixing-set.html
They have waterproof items also twice the price though unfortunately.
I need something similar but waterproof for my window area outside
Order a few at £9.99 and only pay £4.99 post (nerd)