NGP® stands for ""Next Generation Polymer"" - a semi-rigid dense polymer. The NGP® material is malleable enough to slip around and snugly hold your iPod touch 4G, but firm enough to withstand impacts and scrapes. The NGP® provides excellent shock-absorbing protection similar to silicone cases and is stretch and impact resistant. A top, soft matte finish coating leaves the NGP® smooth to the touch. The NGP® for iPod touch 4G safeguards your device with a semi-rigid polymer shell. Featuring custom-cut holes, you'll have full access to your iPod touch 4G's camera hole.