I'm working on sun-proofing myself during desert hikes. I have fair skin and am starting to thin on top, so the head is a major area of concern. I have a Golite mesh cap, and I bought some Solarweave UPF +40 fabric and am working on making a Sahara-looking thing to wear under my hat, thus giving me shade around my neck and face, as well as my head. I'm thinking now that it might be too hot to have the Solarweave fabric AND the hat on.
So my question is, if I cut the head part of the Solarweave off and replaced it with mesh, would the mesh from the hat and the mesh on my head keep any UV rays at bay? Does simply deflecting sunlight (providing some shade) get rid of UV, or would I still be getting a lot of exposure?
NOTE: I've tried various hat/skirt products like the OR Sunrunner Cap, but making my own skirt gives me the flexibility of adjusting it to cover an entire half of my face when the sun is one direction, cover both sides when it's dead on, pull it back a little in shade, etc.

