Unisex Adult T-shirt measurements:

Small: Width 45.5 cm - Length 68.5 cm (to fit 34-36 inch chest)
Medium: Width 50.5 cm - Length 71 cm (to fit 38 - 40 inch chest)
Large: Width 55.5 cm - Length 73.5 cm (to fit 42 - 44 inch chest)
X Large: Width 61 cm - Length 76 cm (to fit 46 - 48 inch chest)
XX Large: Width 66 cm - Length 78.5 cm (to fit 50 - 52 inch chest)

Width measured across garment 1 cm down from arm holes
Length measured from highest point of shoulder to bottom edge of garment

100% cotton
Crew neck collar
Seamless twin needle collar
Rolled forward shoulders for better fit
Twin needle sleeve and bottom hem