Extremely impressed by quality and look of these white Matine curtain panels.  We needed a durable curtain for my client's vacation rental - a material that would stand up to the humidity of Florida and potentially many guests (easy cleaning a must).  The Velcro makes for an easy installation and removal for cleaning purposes! 
It's very thick but with direct light you can see in a bit - not complete blackout but not shear either.  
Compared to other outdoor name brand curtains, this was a steal of a good price.