Core Cases proven aluminum slider design was a massive hit among the original iPhone enthusiasts and now the case has evolved to fit the new iPhone 3G. The brushed anodized aluminum and EVA lining gives you all the protection you need for your iPhone 3G & 3GS. The design allows you to access all of the iPhone's 3G's amazing features and functions while protecting it from every day use. The slim design makes this the perfect case for carrying in pockets, backpacks, or in the car and being aluminum it adds very little to the weight.