I think it's knitted, lovely color and pattern inspiration.
Lovely Knit Top Down Cardigan Baby Sweater - Flax & Twine
Listing for KNITTING PATTERN ONLY of The Brink Sweater. This sweater is handcrafted and designed with comfort and warmth in mind…Perfect
Ravelry: Vintage Cardigan pattern by Helen Rose modèle de 0 à 2 ans payant