You can buy the book that contains this pattern here for £12.95.

Pattern has optional flip tops for mittens.

Needles & accessories
A set 5mm (US 8/UK 6) double pointed needles
OR A 5mm (US 8/UK 6) circular needle, at least 60cm (24in) long for Magic Loop method of working in the round
Stitch holders
2 buttons (flip top version only)
Crochet hook (flip top version)

Yarn
Short version: 1 x 100g ball in Heylor (754)
Long version: 1 x 100g ball in Eswick (763)