Protective Combination of Advanced Impact Materials. Our Classic Shell Samsung Galaxy Note 4 case is crafted with a premium TPU formula renowned for its brilliant flexibility and abrasive resistance. It?s integrated with scientifically proven ? impact material whose molecules lock together on impact, absorbing and dissipating force away from your device, meaning that when your Note 4 experiences inevitable everyday bumps and knocks, you can relax knowing that you?re covered by advanced impact protection. Impactology? Case: Intelligent Impact Protection: Impactology? is the promise that all our products always deliver the most intelligent impact protection. We can make this promise due to a combination of scientifically proven materials and ingenious structural designs that are infused in to the creation of every one of our remarkable products. This protective Galaxy Note 4 case is no exception.