We bought one durable enough to withstand pets but really it depends on your own needs.
Choosing the best screen type depends on where you live, the climate, and the amount and intensity of sun that the porch gets.
It is very important is to ensure that the density of the mesh is small enough to prevent the smallest size of insects from getting though.
Check out phifer.com. They have a detailed description of the various types and will send samples. Also they are the best in the industry.