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Sunday Siblings is designed on the Mornington Peninsula, Victoria, by three mamas setting out to make cool, fun and comfortable clothing for our little loves. Sunday Siblings is creating high quality, durable and stylish pieces with the intention to be passed down to other babes. Whether that is to siblings or to friends.

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6 products

A pair of Holiday Pants Blue Stripe by SUNDAY SIBLINGS is hanging on a wooden hanger against a light-colored wall. Made from soft French terry cotton, the beige pants feature vertical blue stripes, an elastic waistband, and two large pockets on each side. The background includes paintings of red stars on paper.A pair of light blue and white striped Holiday Pants Blue Stripe from SUNDAY SIBLINGS, featuring an elastic waistband, is draped over a dark brown, modern-style chair. The chair is positioned on a dark, slightly textured floor, with part of a white wall visible in the background.
SUNDAY SIBLINGS
Holiday Pants Blue Stripe Sale price$52.00
A Freckle Knit Peach jumper from SUNDAY SIBLINGS with pink trim is displayed on a wooden hanger against a white wall. Made from 100% cotton, the sweater features a chunky texture and speckled detailing for a comfortable fit. Red star-shaped illustrations are partially visible on either side of the sweater.A young child with long, blonde hair in two braids stands in front of a white backdrop adorned with blue spiral patterns. They are wearing a cream Freckle Knit Peach jumper from SUNDAY SIBLINGS, paired with striped pants and orange-checkered shoes. The comfortable fit ensures they feel at ease, one hand near their mouth.
SUNDAY SIBLINGS
Freckle Knit Peach Sale price$59.00
A toddler with curly hair, wearing a bright orange beanie, an oversized Doc Sweater Green by SUNDAY SIBLINGS made of soft french terry cotton featuring a colorful graphic design by Doc Wilson Illustrations, and white pants with blue stars, stands against a light gray brick wall, looking down.A Doc Sweater Green by SUNDAY SIBLINGS, crafted from soft French terry cotton and adorned with yellow text, hangs on a wooden hanger. The hanger is placed on a pink wall-mounted hook rack with five hooks. Above the sweater is a framed abstract painting by Doc Wilson Illustrations, featuring vibrant colors.
SUNDAY SIBLINGS
Doc Sweater Green Sale price$64.00
A cheerful young child with blond hair, wearing the Doc Sweater Pink made of high-quality French terry cotton from Sunday Siblings and star-patterned pajamas, stands on a bed with a wooden headboard and light purple bedding.A young child wearing a high-quality Doc Sweater Pink by SUNDAY SIBLINGS, featuring "Sunday Sublime Mornington Peninsula AUS" printed in orange, smiles while standing on a bed. The background shows a wooden headboard, pillows, a light, and books stacked on a bedside table.
SUNDAY SIBLINGS
Doc Sweater Pink Sale price$64.00
A pair of SUNDAY SIBLINGS' Ninch Overalls Sage Stars, featuring green star patterns and adjustable straps, is hanging on a wooden hanger against a white wall. Red star paintings on white paper are taped to the wall around the overalls.A pair of Ninch Overalls Sage Stars by SUNDAY SIBLINGS, featuring a white base with green star patterns, is draped over a round, dark brown chair. These 100% cotton overalls come with adjustable straps and metal fasteners. In the background, partial views of abstract paintings adorn the wall.
SUNDAY SIBLINGS
Ninch Overalls Sage Stars Sale price$72.00
SUNDAY SIBLINGS' Holiday Pants Red Hearts, made from luxurious French terry cotton, hang on a clothes hanger against a white wall. These ultra-soft beige sweatpants with red heart patterns are framed by three papers taped to the wall: one featuring a single red star, another adorned with multiple red stars, and a third partially off-screen paper displaying one star.A pair of SUNDAY SIBLINGS' Holiday Pants Red Hearts, made from ultra-soft French terry cotton and featuring a beige color with red heart patterns, is draped over a dark brown, modern chair in an indoor setting with a visible dark floor.
SUNDAY SIBLINGS
Holiday Pants Red Hearts Sale price$52.00

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