The Evolution of Reactive Fabric

Since the beginning, fabric has been more than material — it has been a field of experimentation.

Massimo Osti’s early work was driven by a fascination with transformation: garment dyeing, military functionality, industrial processes, and textiles that behaved differently under stress, light, or temperature. The idea that clothing could respond — not just exist — laid the groundwork for decades of innovation.

Thermochromatic technology continues that philosophy.

What Is Thermochromic Yarn?
Thermochromic yarn is engineered to react to heat. When exposed to changes in temperature — particularly body heat — the pigment structure within the fibre shifts, altering the garment’s visible colour. The effect is subtle, organic, and unique to the wearer’s movement and environment.

It is not a print or surface treatment. It is embedded within the knit structure itself.

The Adige Crew Knit
The Adige shifts from an Ice blue to a soft off-white tone as warmth builds. Crafted in 100% cotton with a relaxed silhouette and dropped shoulders, it balances technical experimentation with everyday wearability. A fitted hem refines the shape, while the jacquard ST95 globe logo marks the sleeve.

The Trasimero Knit
The Trasimero transitions from a rich golden hue to a softer yellow with body heat. Designed with a mid-height collar and button closure, it references classic sportswear while integrating advanced yarn technology. The relaxed fit ensures natural drape and movement.

Fabric in Motion
Both pieces are made in Portugal and constructed with precision, but their defining feature is interaction. No two wear patterns are identical. The garment responds differently depending on climate, movement, and individual body temperature.

This is not novelty. It is research applied to knitwear.

An ongoing dialogue between wearer and textile — where fabric becomes active.

Discover the collection.