From the Knit Rowan website:
Knit this womens slip stitch cape from Rowan Knitting and Crochet Magazine 56, a design by Lisa Richardson using a gorgeous combination of Cocoon (Wool and Mohair) and Frost (Alpaca and Viscose).With button fastening and slip stitch pattern, this knitting pattern is for the intermediate knitter.

Finished bottom width dimensions:
90.5: 98.5: 109.5 cm
35½: 39: 43 inches

Yarn Information:
Cocoon
A - Venus 838
4, 5, 5 skeins
504, 630, 630 yards

Frost
B - Gorse 094
3, 4, 4 skeins
246, 328, 328 yards

C - Bothy 098
5, 5, 6 skeins
410, 410, 492 yards

D - Peat 090
3, 3, 3 skeins
246, 246, 246 yards

Extras:
QTY (4) BN1636 buttons from Bedecked.