Not something I have worn since I left the Navy in Dec 69. Always seemed a bit odd not having any sleeves and seemed used to show of muscles, so a bit macho. Still I came across one, form somewhere and used it this winter when working outside. It did the trick and kept me a bit warmer but left my arms a but cooler, where the muscles work :)
So having bought trunks and a couple of t-shirts from bluebuck I thought I'd give the vests @ £25 a try as I was also looking for a website error and thought it must be on the final page after payment, it was. Anyway here'a an image of the sky blue version, I did buy a white also to get above the free postage level.