Helmet covers, or not?

[Tarbicus]

Osiers are willow twigs or shoots. They are still used in basket making

Thanks Felix - mystery revealed But if the twigs broke up the outline of the helmets, and covered the reflective metal, maybe it could still be used as camouflage as Graham pointed to?

The hat on Trajan's column looks curiously Scottish to me.

lol................... hmmmmm. You know, it does resemble a Tam O'Shanter

If you had a four-piece leather dome with a drawstring around the bottom, and a fan section at the back with a tie going underneath the neckguard.....? Or if the neckguard covering had a slot underneath, and the helmet cover were slipped on from the back and over, then secured by the drawstring at brow level.

Ta.

(I know, it's all conjecture. But it's a bit of fun and a helmet would last a bit longer)