Bluey-grey wool-nylon jumper from maison martin margiela line 6, produced by the italian knitwear manufacturer miss deanna some time from the late 1990s - early 2000s (2003 at latest). Line 6 garments from this period were commonly stamped at the back neck with a broad description of the garment (e.g. "X-LONG", "TIGHT FIT", "THREE WAYS TO WEAR IT"), and this jumper is described as "HEAVY WEIGHT". This feels a bit misleading - likely better described as medium weight or maybe medium-heavy weight - but it's a substantial jumper, certainly. Stamping hoopla aside, it has a v-neck, sits short-ish on the body, and is fairly fitted.

Size S (womens/unisex)
Check measurements to confirm fit
All measurements taken flat

Shoulder width: 36.5 cm
Width (at underarms): 43 cm
Length (neck to hem): 59.5 cm
Sleeve length: 65 cm
Hem width: 43.5 cm

70% wool 30% nylon
Made in italy (manufactured by miss deanna)
Late 1990s - early 2000s