La Sportiva will release the Quantum 2.0 in Spring 2013. This mountain runner offers the same rippled rubber sole found in the original Quantum. The new model offers a Vibram outsole below its airy PU midsole. Trail runners will find the Quantum 2.0 has an improved ergonomic fit system across the instep and weighs 16.2 ounces. Making the Quantym 2.0 almost 10 ounces lighter than its predecessor.Look for the Quantym 2.0 from La Sportiva in 2013.