This is the Terrazzo Slipover by PetiteKnit done with Chibi Paka Chunky on a size 10 needle.  Shown with Elements Mittens by A.Opie Designs.

FINISHED MEASUREMENTS:
Chest: 40", Length: 22.5" (size XS on pattern)
YARN:
Ikigai Fiber Chibi Paka Chunky (75% fine washable merino wool, 25% baby alpaca; 55 yds / 50.5 m per 50 g skein: 11 skeins French Vanilla, 1 skein each Bumblebee, Absinthe, Cadet Blue, Iron

PATTERN:
Available here on Ravelry