Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Ychair / public chair


People always avoid sitting beside strangers in public area, when a twin seat been taken by one people, other people would just skip the seat, that would cause the waste of seats. To solve this situation, this design modifies the structure of the twin seat, the direction of seats are adjustable, people can easily change the direction of the seat according to their need.


Asia University

Asia University
Taichung, Taiwan

Jing Da Jheng,
Asia University

Guan Da Ceng,
Asia University