Twist PET Felt Stack Stool

Introduction

Twist PET Felt Stack Stool turns a single sheet of PET felt into a structural form. A precise folding technique creates strength without adding weight. The result is a lightweight stool that stacks efficiently and moves easily between spaces. Made from recycled PET felt and shaped in one pressing process, Twist balances material efficiency with everyday performance.

Light to carry, quick to stack, easy to store. Twist adapts to flexible layouts in offices, education, and public spaces. Use it as additional seating, a compact seat for short meetings, or a practical solution in high-density areas. When not in use, stack multiple stools to keep the floor clear and the layout open.

Bespoke options

Two standard frame colours are available: black (RAL 9011) and white (RAL 9010). Beyond these, specify any RAL colour for the frame or add seat upholstery to match your interior.

Choose any frame colour

The powder-coated steel frame can be finished in any RAL colour. Match it to the PET felt seat for a tonal look, or pick a contrasting tone to make Twist stand out.

Add upholstery

For extra comfort, add seat upholstery from a wide range of fabrics. A practical option for spaces where people sit for longer stretches.

11 PET felt Colours

Dark Grey

Light Grey

Dark Green

Green

Olive

Yellow

Marine

Turquoise

Brown

Beige

Pink

Images

Material

Made from recycled PET felt

Twist uses PET felt made from recycled plastic bottles. The material offers durability, acoustic softness, and a tactile surface. A single-mould pressing technique shapes the stool with varying thickness, reinforcing the folds that give Twist its strength. Less material. More performance.

Learn more about our PET felt technology

Twist in projects

From collaborative workspaces to cultural venues and educational settings, see how architects use Twist to add flexible seating without adding visual weight.

Muziekwerf

Public Rotterdam, the Netherlands by Powerhouse Company

Merck KGaA

Office Darmstadt, Germany by Design in Architektur

Specifications

Materials
- Seat
  PET Felt
- Frame
  Powder-coated steel
- Upholstery
  Fabric + high-resilience foam
PET Felt
- Martindale
  100.000
- Pilling
  3/4
- Care & Maintenance
  Please see our Care & Maintenance Guide
Technical details
- Weight
  3.4 kg (+0.3 kg with upholstery)
- Certifications
  • ANSI-BIFMA X5.1-2017 General purpose office chairs • BS 5852:2006 Ignitability test (performed on PET Felt) • ISO 12947-2:2016 Abrasion resistance test (performed on PET Felt) • ISO 12945-2:2000 Pilling Martindale (performed on PET Felt) • Product footprint report
Colours
- Seat
  Yellow, Pink, Marine, Turquoise, Dark Green, Green, Dark Grey, Olive, Beige, Light Grey, Brown* *Due to the recycled content of the PET felt, minor colour differences may occur.
- Frame
  Standard: RAL 9011 (Black) / RAL 9010 (White) Custom: any RAL colour Fine texture: RAL 1012 (Yellow PET), RAL 3005 (Pink PET), RAL 5008 (Marine PET), RAL 5020 (Turquoise PET), RAL 6007 (Dark Green PET), RAL 6020 (Green PET), RAL 7015 (Dark Grey PET), RAL 7033 (Olive PET), RAL 7044 (Beige PET), RAL 7045 (Light Grey PET), RAL 8014 (Brown PET), RAL 9011 (Graphite Black)
- Upholstery
  Kvadrat

Downloads

Design files
- Twist PET Felt Stack Stool - 3D Files .zip Download
- Twist PET Felt Stack Stool - Technical Drawing .pdf Download
Reports & certifications
- Twist PET Felt Stack Stool - LCA .pdf Download
- Twist PET Felt Stack Stool - Material Passport .pdf Download
Product documentation
- Twist PET Felt Stack Stool - Product Setting Images - Hi-res JPG .zip Download
- Twist PET Felt Stack Stool - Product Solo Images - Hi-res PNG .zip Download
- Twist PET Felt Stack Stool - Productsheet .pdf Download

Introduction