With RebelSerpent, we have utilized brand new materials and radical design methods to protect your iPhone. Introducing UltraFrame™ hard protection system, a unique cover-all hard shell exo-skeleton frame made with Lexan® polycarbonate protecting all the important parts of your iPhone 3G that may be prone to impact. In addition, we have utilized a special new material called ADSP (Adaptive Dynamic Soft Polymer) underneath the frame to protect the delicate surface of your iPhone 3G. Your iPhone 3G needs some hard core TLC (Tender, Loving Care) to protect it, In order to protect your phone, we have utilized a brand new material for the delicate protection needs of your iPhone 3G. Introducing ADSP, a new polymer which is hip huggin’ soft but yet tough enough to divert shock for your everyday needs. ADSP is also very resistant to discoloration and soiling from day to day use. It’s the best material ever used in a hybrid case.