3D-Knitted Sleeping Bags

The Laying Bag Changes Color Over Time to Reveal Different Patterns

During Milan Design Week, Amsterdam-based studio Belén debuted a unique product called the Laying Bag that evolves over time. Not only does the sleeping bag feature a unique texture, but it is also designed to change color over time to create a mesmerizing ombré effect.

The Laying Bag is a 3D-knitted sleeping bag made from vegetable-based dyes. Although the sleeping bag is initially colored pale pink, the dyes will react to UV radiation and gradually change over time. As the colors change, the pattern in the fabric will become more visible, revealing the intricate cylindrical weaves created by the 3D printer.

While many industries shy away from plant dyes because they are unstable, Belén demonstrates how natural dyes can be used to make unique products that consumers will never tire of.

Color-changing Fabrics
The use of dyes that react to UV radiation to create color-changing effects in fabrics presents an opportunity for innovative and interactive fashion designs.
3D Printing in Textile Manufacturing
The integration of 3D printing technology in textile manufacturing processes opens up possibilities for creating intricate and customizable patterns with unique textures.
Sustainable Use of Plant Dyes
Exploring the stability and potential applications of natural plant dyes in various industries can lead to the development of eco-friendly and visually striking products.

Sectors Adopting This

Fashion and Apparel
The fashion and apparel industry can leverage color-changing fabrics to create visually engaging garments and accessories that offer interactive experiences.
Textile Manufacturing
Integrating 3D printing technology into textile manufacturing processes can revolutionize the industry by enabling the production of intricate and customizable patterns with unique textures.
Eco-friendly Products
The use of stable natural plant dyes in various industries such as home decor, cosmetics, and packaging can lead to the development of eco-friendly products with visually appealing aesthetics.
SCORE
3.2 out of 10
GENDER
50% Men50% Women
MARKETTop markets: Europe
GENERATION
  • Gen Z
  • Gen Alpha
  • Millennial (primary audience)
  • Gen X (primary audience)
POPULARITY
Popularity 54%
Activity 33%
Freshness 8%

Solutions for innovators working at the edge of change. We help transform emerging ideas into practical, durable solutions by combining strategic thinking, creative exploration, and hands-on execution.

Trends © 2026 Trend Hunter Inc. All Rights Reserved.
LinkedIn Instagram X