COS I SAID SO® is an Antwerp-based brand founded in 2016 by boys’ mom Sofie Ysewijn.
What started as a small idea for cool, comfy basics has grown into an international label — stocked in some of the world’s most inspiring stores and represented on Smallable.
We design timeless, seasonless essentials that last.
Each piece is made from organic cotton, produced responsibly in Portugal under fair working conditions.
We’re conscious about what we make and how we make it — avoiding overproduction and using recyclable and biodegradable packaging wherever possible.
Just quality, always.
COS I SAID SO stands for easy fits, clean silhouettes, and a genderless aesthetic that moves effortlessly from toddler to teen.
A simple, street-style vibe that feels cool without trying too hard.