Sia - Winner Planet Positive Awards

We are delighted to share that Sia has won the Furniture | Office Award in METROPOLIS’s Planet Positive Awards 2023

The awards recognise the most creative projects and products from around the world that benefit people and the planet, as well as firms and professionals leading the way to a better-built environment. Judged by four expert juries across project types and product categories, the winners represent the highest achievements today in design that addresses climate change, ecosystem health, human health, and equity.

Sia is our most stylish and sustainable task chair to date, designed to minimise environmental impact while maximising visual appeal. Featuring custom-made Camira Knit fabrics, and available in an array of color options, the seat redefines how task chairs can look in today’s workspaces, where comfort, ergonomics and productivity are key.

Working together to reduce Sia’s carbon impact across every component and material, the design and procurement teams were able to ensure that its total carbon footprint is just 58.02kg CO2e, significantly lower than the industry average for task chairs.

Metropolis – Planet Positive Awards

Sia is an exciting design exploration on our sustainability journey, It offers unparalleled choice with a light carbon footprint that has been independently verified by Declare. Sia’s suites seamlessly into the modern work environment in concept and aesthetic.”

Mark Barrell, Design Director. “


The design and procurement teams at Boss Design have worked in tandem to hammer down Sia’s carbon impact across every component and material. As a result, its total carbon footprint is just 58.02kg CO2e, significantly lower than industry average for task chairs.

Built with circularity in mind, no adhesives are used and Sia is easily separated for repair and/or recovery of components. Sia consists of 70.6% recycled content, including 43.1% post-consumer recycled plastics. At the end of its working life, 99.4% of Sia’s materials can be recycled.

“We believe that we can always improve comfort, form and sustainability with every new chair we design, and that’s how we approached Sia,” says David Bonneywell, Design Manager, Boss Design.


Sia’s soft, organic aesthetic is augmented by a naturally inspired pallet of color options. The back frame form that gives Sia its unique graphic character can be specified in four colours; Copper Brown, Reed Green, Black or Oyster White. Meanwhile, the mesh comes in five styles and textures and 33 colors.

For custom colour orders over 250 units, any RAL colour can be specified for both frame and mesh. This enables clients to achieve a pitch-perfect visual tone, welcoming employees into destination spaces that are calm comfortable and exude the brand style.

“We’re offering superb comfort, excellent adjustability and the kind of visual appeal that makes it possible for Sia to swing into a wide variety of interior schemes. In terms of color, the flexibility Sia offers is second to none,” says David Bonneywell, Design Manager, Boss Design.