From the Knit Rowan website:
Knit this unisex sweater that is now available as a download exclusive. Designed by Lisa Richardson using Rowan Tweed and Fine Tweed with a size range from 36-50in. This polo neck sweater features a modern Christmas fairisle pattern.

Now available for $7 as an individual download in English at our Ravelry Store

Finished dimensions:
49.5: 52.5: 56: 58.5: 61.5: 63: 67: 69.5 cm
19½: 20½: 22: 23: 24: 25: 26½: 27½ inches

Yarn information:
Version 1 (Crew neck with 4 colourways)
Rowan Tweed
A - Nidd 594
7, 7, 8, 9, 9, 10, 10, 11 skeins
903, 903, 1032, 1161, 1161, 1290, 1290, 1419 yards

Rowan Fine Tweed
B - Hubberholme 370
1 2, 2, 2, 2, 2, 2, 2 skeins
98, 196, 196, 196, 196, 196, 196, 196 yards

C - Dent 373
1 skein for all sizes
98 yards

D - Bellbusk 376
3, 3, 4, 4, 4, 4, 5, 5 skeins
294, 294, 392, 392, 392, 392, 490, 490 yards

Version 2 (Turtle/Polo neck with 2 colourways)
Rowan Tweed
A - Gunnerside 593
7, 8, 9, 9, 10, 10, 11, 11 skeins
903, 1032, 1161, 1161, 1290, 1290, 1419, 1419 yards

Rowan Fine Tweed
B - Buckden 364
5, 5, 6, 6, 6, 7, 7, 7 skeins
490, 490, 588, 588, 588, 686, 686, 686 yards