You will need stitch holders, stitch markers and 5 buttons.

You will also need a size US 2.5 (3 mm) circular needle, at least 40”(100 cm) long for the buttonband.

Finished measurements;
Chest circumference: 38.5( 42.5, 46.5, 50.5, 54.25, 58.25, 62.25, 66.25, 70)“ 98( 108, 118, 128, 138, 148, 158, 168, 178) cm
Finished length: 22.5( 23.25, 24, 24.75, 25.5, 26.5, 26.75, 27.5, 28)” 57( 59, 61, 63, 65, 67, 68, 70, 71) cm
Sleeve seam: 15.5( 16, 16, 16.25, 16.25, 16.25, 16.25, 16.25, 16.5)“ 39.5( 40.5, 40.5, 41.5, 1.5, 41.5, 41.5, 41.5, 42)cm

Yarn used:
Rowan Summerlite DK
Shade 465 White - 11( 12, 13, 14, 16, 17, 18, 20, 21) balls