
Small-Batch Production
We produce in limited quantities to reduce waste and avoid overstock. No mass production, ever.

Made in Portugal & Spain
All of our pieces are designed and developed between Barcelona and Lisbon — crafted with care by expert partners we know and trust.

Certified Fabrics
We use sustainable, certified materials like EcoVero™ viscose and Triacetate — breathable, long-lasting, and responsibly sourced.

Slow Fashion, Real Fit
We design with longevity in mind: versatile cuts, flattering fits, and comfort that carries you through the day.

Why It Matters
We started Halfen House to make clothes that feel good and do good.
Our approach to sustainability is simple: design with care, produce responsibly, and never compromise on quality.
We don’t claim perfection. But we do promise progress.
From packaging to fabrics to production partners, we continually refine our process to reduce our environmental footprint and raise our standards.
Our Certified Fabrics
TRIACETATE
A certified semi-synthetic fiber derived from natural cellulose pulp through a low-impact chemical process.
It’s breathable, quick-drying, wrinkle-resistant, and easy to care for — with a subtle shine and fluidity that elevates every piece.
EcoVero™ Viscose
A certified sustainable viscose alternative made from wood pulp sourced from responsibly managed forests.
Soft, breathable, and lightweight, EcoVero™ offers the perfect drape with a much lower environmental impact than conventional viscose.
RECYCLED LYCRA
A high-performance, sustainable stretch fabric made from post-industrial waste.
It features UPF 50+ sun protection, excellent coverage, ultrachlorine resistance, and superior shape retention — ideal for movement and versatility.
ORGANIC COTTON
Naturally breathable and gentle on the skin, our 100% organic cotton is grown without harmful pesticides and certified to the highest environmental standards. It’s soft, durable, and safe — for you and the planet.
Certifications:
🌿 GOTS Certified
🌿 OEKO-TEX® Standard 100
Features:
• Hypoallergenic
• No chemical treatments
• Fully biodegradable