One shirt,
every moment

Dual-function t-shirts built for Scandinavian women who move between gym, trail, and café without pausing to change.

Sillo women's t-shirt in Copenhagen setting
2-in-1 Athletic + Leisure
Copenhagen streetscape with activewear

Born on a Copenhagen bicycle lane

Copenhagen women don't compartmentalize their lives. They ride to yoga, walk to meetings, run errands between coffee shops. The wardrobe shouldn't demand a costume change for each transition.

Sillo was designed for this rhythm. Technical enough for the studio. Refined enough for Nørrebro brunch. No compromises between performance and presence.

73%
of Danish women cycle to work daily
0
outfit changes between activities

Engineered for every transition

Moisture-wicking, odor-resistant, and cut to flatter. Each piece moves from active to social without missing a beat.

Sillo Core Tee in slate
Bestseller
The Core Tee
Our signature piece. Recycled polyester blend with 4-way stretch. Flatlock seams, subtle contour paneling.
DKK 449
Sillo Flow Tee in clay
New
The Flow Tee
Loose fit, dropped shoulder. Organic cotton exterior, technical mesh lining.
DKK 399
Sillo Active Tank in stone
Essentials
The Active Tank
Sculpted armholes, built-in shelf bra. UV 50+ protection, quick-dry finish.
DKK 349

The details that matter

We obsessed over fabric, fit, and finish so you don't have to think about what you're wearing.

01

2-in-1 Function

Technical construction for workouts. Refined silhouettes for daily wear. One shirt replaces two wardrobes entirely.

02

Scandinavian Fit

Pattern-cut for Nordic body types and Nordic movement. Relaxed torso, articulated shoulders for cycling, elongated hem for stretch coverage.

03

Cold-Climate Ready

Midweight fabrics for Copenhagen's 8-18C range. Breathable for indoor training, warm for outdoor commutes. Layer-friendly under jackets.

04

Mono-Material

Single-fiber construction for easy recycling. No blended fabrics destined for landfill. Designed for circularity from day one.

Built for the planet we cycle through

Scandinavian consumers demand transparency. We deliver traceability from fiber to finished garment, with verified certifications at every stage.

100%
Recycled or Organic
Every fiber sourced from certified recycled polyester or GOTS organic cotton.
87%
Lower Water Use
Closed-loop dyeing process cuts water consumption vs. conventional methods.
0
Microplastic Loss
Engineered fiber structure prevents shedding during wash cycles.
Full
Supply Chain
Traceable from raw material to your doorstep. Published on every product page.
Sustainable fabric close-up
Copenhagen cycling
Scandinavian nature

Where Sillo fits

The Nordic women's activewear market is worth $2.07B and growing at 7.69% CAGR. Most brands choose a lane. We bridge the gap.

Fashion Premium
Strong Copenhagen brand DNA, no activewear line. Lifestyle only.
Performance Global
Great technical gear, but not designed for Scandinavian lifestyle or climate.
Basics Premium
Beautiful Copenhagen basics, no technical/athletic function.
Athletic Leisure CPH
The missing bridge. Copenhagen design DNA meets athletic function for Nordic life.

Ganni owns the party. Lululemon owns the gym. Nobody owns the bike lane.

Sillo sits in the unclaimed territory where athletic performance meets Copenhagen cool. Designed in the city, for the way this city actually lives.

First access to every drop

Limited-run collections, fabric previews, and Copenhagen-only early access. No spam. Just the good stuff.

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