MOLS case is 100% made of XELION.
From the best Italian research in nanotechnology comes this material,

an innovative rubber compound which considerably differs from all conventional elastomers.
Like a cushion, XELION® absorbs shocks by temporarily deforming itself and converts the 96% of the energy generated by the impact into heat. The heat is then instantly dissipated in the air and as a result less than 4% of the shock energy is transferred to the device.
In a range of temperature from -20°C to +35°C (-4°F to +95°F) XELION® is the most performing material existing in the market