Pullover, almost polo shirt-style sweater or long sleeve top by french designer jean colonna. Made from a grey, heathered knit fabric blend of wool, acrylic, nylon, and silk, it has a point collar, buttoned front, and overlocked edges. It feels sort of hard to categorise because, but for a narrow self-fabric band sewn around its base, it would be a cardigan, but by virtue of said band rendering it pullover rather than open-able, it isn't. Quite cropped.

Marked size M (unisex/womens)
Check measurements to confirm fit
All measurements taken flat

Shoulder width: 40 cm
Width (at underarms): 44 cm
Length (neck to hem): 47 cm
Sleeve length: 53 cm
Hem width: 43 cm

Wool-acrylic-nylon-silk blend (tag somewhat faded, percentages indistinct)
Made in france
Early to mid 1990s (pre 1997)

See more jean colonna items here, or read more about the designer here.