“Hallo, Rabbit,” he said, “is that you?”
“Let’s pretend it isn’t,” said Rabbit, “and see what happens.”
-- A. A. Milne

There are charts for Left and Right mittens & muffatees. Finished size is determined by the needle size. In addition, there are 2 Rabbit styles to choose from - A & B. Since there are longer floats over the rabbit section, you may want to use the Ladder-back/Invisible Jacquard technique, included in the pattern.

Mitten Lining: If you would like to work a lining, working your mittens a size larger than your hand and then working the lining a size smaller usually works for most people.

yarn:
Shetland 4ply by Gathered Sheep Yarns; Fingering; 100% Pure Shetland Wool; 234yds (213.97m) / 55g
approximate yarn amounts for a pair of mittens:
MC (Green Lantern/Purple Potion) - 25 (27, 29, 35) g; 107 (115, 124, 149) yds / 98 (105, 113, 137) m
CC (Dove) - 21 (23, 25, 30) g; 90 (98, 107, 128) yds / 82 (90, 98, 117) m
If you are working mitten lining - 25 (27, 29, 35) g; 107 (115, 124, 149) yds / 98 (105, 113, 137) m approximately 40 (43, 46, 56) g of Hawcombe Wood Collection OR BFL/Masham for a lining
needles:
2.0mm (us no 0) DPNs 6in/15cm; set of 5
2.25mm (us no 1) DPNs 6in/15cm; set of 5
2.5mm (us no 1.5) DPNs 6in/15cm; set of 5
2.75mm (us no 2) DPNs 6in/15cm; set of 5
3.0mm (us no 2.5) DPNs 6in/15cm; set of 5
2.0mm - 3.0mm crochet hook for provisional cast-on
gauge:
34 (32, 30, 28) sts x 34 (32, 30, 28) rows = 4in/10cm measured over stranded stockinette on 2.25 (2.5, 2.75, 3.0) mm needles
approximate finished size:
circumference - 7.5 (7.75, 8.5, 9) in / 19 (20, 21.5, 23) cm
additional tools:
needle to weave in ends, waste yarn/stitch holder

Matching Rabbity hat and Hollyhocks & Moon Rabbit cardi patterns.