Why would you want to ruin the elegance of your Apple Iphone 4 by putting on bulky, ugly silicon jacket, or thick colorful tacky cases? You wouldn?t, you want to protect your Iphone while maintaining its original grace without adding on more weight or size. This Ultra Thin Iphone jacket provides protection for your iphone without the bulky look. It is only 1mm thick and less than 0.2oz. It has certain degree of flexibility so its not easily cracked. This is a case you have to use if you like how your Iphone looks, but wants to protect it without ruining its original grace.