White thermal vest has a dimpled honeycomb stretch knit pattern in the weave of the fabric. T-shirt style with ribbed bands. No labels at all, but appears to be either cotton or perhaps cotton with a little polyester. 1970s-1980s.
I have three of these.
1. Large - Chest 99 cm (39"), Length 76 cm (30"). Colour has dulled, not bright white. Glue residue where a name sticker was attached at the inside hem, as shown, minor pilling.
2. Medium - Chest 97 cm (38"), Length 80 cm (31.5"). Good condition - good white colour but has a faint mark on the front 14 x 10 mm, as shown.
3. Small - Chest 87 cm (34"), Length 72 cm (28.5"). Colour has dulled, not bright white, minor pilling.