some late additions...
last weekend when I was taking the pics for this post, I couldn't find the fabric samples; yesterday I found 'em, all but the screaming-yellow, which should be hard NOT to find... thought some might find these interesting, particularly those of the mesh...
the color assortment for both kevlar fabrics (bright yellow stretch is missing, but that's the 'yellow' mesh sample).
same photo, but the stretch kevlar patches are flipped over so you can see the back - kinda terrycloth-like; it's thick stuff. Mesh is same both sides.
close-up of the mesh colors
red mesh showing how much light passes through
As you can see, the mesh is quite good for ventilation; the stretch is more like a thick denim or thicker, and no light passes through it.