About US

Making the world a more comfortable place.

Two women by the water wearing navy and light grey hoodies with matching lounge shorts, relaxed casual summer outfits.
Two women by the water wearing navy and light grey hoodies with matching lounge shorts, relaxed casual summer outfits.

The founders

We wanted blanks that feel considered. Clean lines, reliable fits, and a supply chain that treats people fairly. We chose slower growth, fewer styles, and higher standards so every piece earns a place in your rotation.

Founder of Sunday Superior at a factory looking at fabrics with production manager
Closeup of Sunday Superior hoodie materials and details

Sustainability

MAterials that matter

We keep the fabric list short on purpose. Almost everything we make starts with certified organic cotton, and every finished piece is OEKO-TEX 100 certified. That means every component has been tested against a list of over 100 harmful substances, from dyes and finishes to thread and labels. If it's on the garment, it's been checked. Each batch is also tested for shrinkage, pilling, and colorfastness before it reaches you.

Made with people we know

Fair Work and Real Partnerships

We work with audited factories and long-term partners. Safe workplaces, fair pay, and no child or forced labor are non-negotiable. We visit, we listen, we improve together.

Production line at Sunday Superior facotry in Turkey
Textile dyeing machine and factory worker handling fabric in garment production facility

Chemicals

Chemicals are essential in processes like dyeing, printing, and washing during clothing and shoe production. To ensure product safety, our suppliers follow a Restricted Chemical List, complying with regulations such as REACH and CLP. Regular chemical testing is conducted at independent laboratories in China and Scandinavia.

BSCI

We collaborate with manufacturers who adhere to "Codes of Conduct" and independent third-party inspections. We prioritize suppliers who are members of the BSCI (Business Social Compliance Initiative), with 90% of our Chinese suppliers currently certified. BSCI membership entails external inspections focusing on health, safety, and social conditions, followed by improvement plans to address any deficiencies.

Certified textile factory exterior with production and compliance facilities
Raw cotton fibers prepared for textile material production in factory environment

Materials

Our commitment to high-quality products extends to materials. We meticulously select fabrics and accessories to meet stringent standards.


Cotton, valued for its softness, durability, and washability, is a staple in our collection. We source USA cotton for production in China and primarily use locally grown cotton in Turkey, supplemented by imports from the USA and Greece when necessary.


All our textile products hold Oeko-tex Standard 100 certification, guaranteeing they are free from illegal or harmful substances.

Oeko-Tex Standard 100 certification badge
Model wearing Light grey Sunday Superior sweatpants, styled with dark outerwear

Stay in the loop

Be the first to know about new collections and exclusive offers.

Model wearing Light grey Sunday Superior sweatpants, styled with dark outerwear

Stay in the loop

Be the first to know about new collections and exclusive offers.

Model wearing Light grey Sunday Superior sweatpants, styled with dark outerwear

Stay in the loop

Be the first to know about new collections and exclusive offers.