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

sLIDe / coffee lid design


As existing take-out cups had opened hole on the lid, people easily spill coffee on their clothes or burn their hands.

For such problem, sliding stopper which can open and close the lid can be a simple but effective solution. Now, with sLIDe, we will never burn our hands when we have coffee wherever and whenever we drink coffee.


Hongik University

Hongik University
Seoul, South Korea

Yoomin Maeng,
Hongik University

Yumin Lee,
Hongik University

Hwachan Lee,
Hongik University

Jihyun Lim,
Hongik University