With RebelTouch, we have utilized brand new materials and radical design methods to protect your iPod Touch 4G. Introducing UltraFrame hard protection system, a unique cover-all hard shell exo-skeleton frame made from super tough polycarbonate protecting all the important parts of your iPod Touch that may be prone to impact. Your iPod Touch needs some hard core TLC (Tender, Loving Care) to protect it, In order to protect your iPod Touch, we have utilized a brand new material for the delicate protection needs of your iPod. 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.