What is the material of the Original Floatzac?

The Original Floatzac has an EPS filling for prolonged use. 

The upside of the Orginal Floatsac is made of 100% Acryl Sunbrella fabric. This is a high-quality fabric that is water and dust repellent (non-waterproof). This special fabric provides ideal protection against wind, sun and rain and also has a special coating to prevent discoloration.

The bottom of the Original Floatzac is made of PVC.