From the Knit Rowan website:
Knit this Womans jumper from Rowan Loves.A design by Sarah Hatton using the gorgeous Kidsilk Haze or the beautiful Felted Tweed.Kidsilk Haze jumper has 3/4 sleeves while the Felted Tweed has long sleeves both have a slash neck and a split at both side seams.This is for a beginner knitter

Finished width measurements:
46.5: 51: 57: 63: 70 cm
18: 20: 22.5: 25: 27.5 inches

Yarn information:
Long Sleeve Version
Photographed in Felted Tweed DK colorway Ancient 172
6, 6, 7, 8, 8 skeins
1146, 1146, 1337, 1528, 1528 yards

Kidsilk Haze held DOUBLE
9, 10, 11, 12, 14 skeins
2061, 2290, 2519, 2748, 3206 yards

Kidsilk Haze used SINGLE
4, 4, 5, 5, 6 skeins
916, 916, 1145, 1145, 1374 yards

3/4 Sleeve Version
Felted Tweed DK
5, 6, 6, 7, 8 skeins
955, 1146, 1146, 1337, 1528 yards

Photographed in Kidsilk Haze colorway Trance 582 held DOUBLE
8, 9, 10, 11, 12 skeins
1832, 2061, 2290, 2519, 2748 yards

Kidsilk Haze used SINGLE
4, 4, 4, 5, 5 skeins
916, 916, 916, 1145, 1145 yards