So I decided to get some scrim net to use as a head covering for the warmer months (since my shemagh & t-shirt can get pretty hot during summertime) and picked myself up a 1m² 100% cotton sniper veil in olive drab with brown splotches from my local surplus store, and I must say I'd highly suggest it to anyone for operations in warmer climates as it's ultra breathable and quite strong (and dirt-cheap; mine was $13 from a store known for its high prices). It's got the same versatility as a shemagh and can be worn in a variety of ways (scarf, sash, hood, face covering/mask, etc) or, due to its see-through nature, can be simply draped over the head. I tried tying it in the traditional shemagh face-covering fashion but with the material pulled down over my eyes - completely covering my head - and still had near-perfect visibility while still being able to breathe very easily. And while looking in the mirror I could barely see any skin, and that was up close under a bright florescent light. Due to the holes in the netting you could also improve the camouflage by sticking small bits of foliage through them, forming a makeshift ghillie veil. When wrapped up the material is thick enough to be used as a temporary field bandage.