This super snuggly jacket is worked in one piece starting with a ribbed collar and working down from the collar with a raglan yoke, then joining to make the sleeves and button bands.

Included is a short YouTube for the loop stitch.

See the size chart in photos for the sizes available.

Written in English US terms with abbreviations for UK

Materials
DK / Weight 3 yarn I used King Cole Tropical Beaches Shade Clearwater Beach (510 metres per 200g)
3.5 and 4.5mm crochet hooks
4-7 x 15-20mm buttons

The PDF is 26 pages with each size written separately.