This Gilet is brand new but there is no size label I have checked size with website and it’s appear size medium
For size chart:
Chest: XS: 106.7cm (42"), S: 111.8cm (44"), M: 116.8cm (46"), L: 123.2cm (48.5"), XL: 130.8cm (51.5"), 2XL: 141cm (55.5"), 3XL: 151.1cm (59.5"), 4XL: 161.3cm (63.5")
Length: XS: 76.8cm (30.2"), S: 77.5cm (30.5"), M: 78.1cm (30.7"), L: 79.1cm (31.1"), XL: 80.3cm (31.6"), 2XL: 82.2cm (32.4"), 3XL: 84.5cm (33.3"), 4XL: 86.7cm (34.1")
Hip: XS: 109.2cm (43"), S: 114.3cm (45"), M: 119.4cm (47"), L: 125.7cm (49.5"), XL: 133.4cm (52.5"), 2XL: 143.5cm (56.5"), 3XL: 153.7cm (60.5"), 4XL: 163.8cm (64.5")