SUPERLIGHT All-wool sleevless T/vest from Australia $48
Good most of the time. Under a cotton shirt, to soak up the sweat and keep it off the cotton. Weighs nothing, quite useful, AND super nice on top of another wool layer. Then if you get too hot, take off this sleeveless job, and suddenly you’re slightly not quite as hot.
Mucky brown-green, looks good. It looks like the color you’d want to wear if you were going to war in the jungles.
FLASH: For reasons not worth telling here, we have a small number of mediums in other colors, too. Same low price, etc.
Buy your t-size, go UP a size if you don’t want it huggy.