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

37°c / Heat Transferring Textile


37°c is a thermal conductive knitted textile. Its main application is a new breed of clothing - enabling thermal comfort by conducting heat from warmer to colder body parts. It solves the problem of cold extremities in a passive, natural way.

With Imperial College’s NanoHAC group and Gemma Brown from RCA’s textiles department, we developed a non-metal, affordable, durable and comfortable, highly thermal conductive fabric.

We created a prototype of a sock that transfers heat from a warm calf to a cold foot as a first product.

37°c is perfect for sports, common medical conditions (as Raynaud's syndrome) or everyday comfort and energy saving.


Royal College of Art

Royal College of Art
London, United Kingdom

Iddo Wald,
Royal College of Art