14/01/2014 What are Airless RubberSkin Tires? Airless RubberSkin tires are a new kind of tires that give you the best grip possible, and you don’t even need to inflate them. A foam core means they cannot puncture; an outside rubber layer makes them just like real tires. Great grip and no pump – that’s best of both worlds. Exactly what every Chillafish rider needs.