Petter and Kajsa is a Swedish brand with baby clothes for boys and girls from size 50-86
It is Carlsteins in BorĂ¥s that owns the trademark and wholesale.
https://www.carlsteins.se/
Body, T-shirts, socks, sweaters, jackets, pajamas, gloves

Short-sleeved baby body combined with trousers. Striped. Closed with button at the top and crotch.
Solid colored winter cap with tassel and lining for children 0-12 months.
Jumpsuit with hood and pocket. Heart printed. Closes with a zipper.
Black trousers in cotton. Available for ages 1-18 months.