Win a Picture wetsuit

Picture Organic clothing have launched into the wetsuit market with a new wetsuit range made from Naturalprene.

“We searched for a sustainable and responsible alternative to the rarely recyclable and polluting neoprene: “a high quality wetsuit, following our 100% eco-friendly vision”. So, instead of synthetic rubber, we use a natural one which permits to reduce by half the carbon footprint!

We have a wetsuit to give away. All you have to do is answer the following question. 

Picture NaturalPrene is mostly composed by using which element?

Closing date: 17th July 2017
Clue: Click here