Trying to make sure you get as much protection as you possibly can for your iPhone 3G / 3GS? Double up with the Incipio iPhone 3G / 3GS Silicrylic Gel Shell Combo. Featuring an imaginitive hard acrylic shell with two interchangeable silicone cores for protection against both scratching and impact, the Incipio iPhone 3G / 3GS Silicrylic Gel Shell Combo is in a class of its own. Don't worry: it's still slim, stylish, and maintains access to all the important functions and ports on your iPhone.