The 15.6-inch Lenovo L520 has the highest amount of post-consumer recycled content of any of the ThinkPad line. The new thermal design has reduced energy consumption and they have lower CO2 emissions. They also ship with 20% less packaging, which is 100% recyclable. The L520 is eco-friendly, and certified by ENERGY STAR and qualifies for the EPEAT Gold rating. The L520 passes eight military specification tests, ensuring functionality in a wide range of adverse conditions. The L520 is constructed for durability, with new metal hinges and latchless design, and comes with Active Protection System to protect against abrupt movement or accidental fall.