how do we make theseentrepreneu challenges. pauline, that's what you are, and a fashion designer.ow do we make these. waterless toilets. how do we make it accessible and affordable to consumers? >> i think it's important to make these products desirable. and i think as a fashion designer, this is one of my aims, like not only focusing on the hard technology but, also, on the softness of fashion and the desireability of a product. so that we don't come up with these gadgets that mike loot cool and no one is going to wear. >> that's where i try making these dresses really fashionable. >> pauline, show us? >> i can fold it open. it has like a modular design. you are wearing these solar panels close to your body. when you want to charge your phone, you open them up and reveal them to the sunlight and there are 72 of these very thin film solar cells. they are very flexible and also very wearable, very comfortable. >> i hope they have those for men's suits soon because i can certainly use that. that would be valuable. >> or in a hot climate, thermal energy. >> i would wear it. >> solar.