help keep the sun out.
the other thing you will need other than a curtain is some zip ties or string. we used zip ties as the are super easy and we had some on hand already. but string will also work.
then all you need to do is use the ties or string to attach the curtain to your canopy. we did ours so that it was attached tight across the top and down one side. but we left the other side unattached so that you could walk through if needed.
if you will have no need to walk through, you can attach the other side as well to make sure that 