A pair of thin snoods to form a kind of ultra-thin balaclava, with some bog-standard mesh goggles to clamp it all down. Earlier iterations (/winter gear) used heavier snoods at a cost to respiration.
Complete coverage with no breathing issues, and I can get my eye down any scope. Headshots leave pretty nice bruises though because the material is so thin, but I prefer to be able to breathe unimpeded.
Cost: 5/5 (£1 each for the snoods, £7 for the goggles)
Protection 2/5 - 4/5 (dependent on material; thin to thick)
Comfort: 5/5 - 2/5 (dependent on material; thin to thick)