Martavis Blackmon | Jersey Style ShirtEvery purchase of this item directly supports Martavis Blackmon. 100% cotton Taped neck and shoulders Double seam at sleeves and bottom hemSize guide Size LENGTH (inches) WIDTH (inches) SLEEVE LENGTH (inches) S 28 18 15 M 29 20 17 L 30 22 18 XL 31 24 20 2XL 32 26 21 3XL 33 28 22 4XL 34 30 24 5XL 35 32 25 Size LENGTH (cm) WIDTH (cm) SLEEVE LENGTH (cm) S 71. 1 45. 7 39. 7 M 73. 7 50. 8 43. 2 L 76. 2 55. 9 47 XL 78. 7 61 50. 8 2XL 81. 3 66 54. 6 3XL 83.