NWT Mens Maison Margiela Black Long Sleeve Contrast Stitch Collar Hidden Placket Button Up Size 41. Constructed of cotton poplin. Longer length and slightly longer in the back. Made in Italy. 

Measurements:

Chest

23 in
58.4 cm

Length

32 in
81.3 cm

Shoulders

18.5 in
47 cm

Sleeve Length

26.5 in
67.3 cm