The maker of these iPhone 4 cases proudly announced that it has passed and exceeds the qualification of US and UK military qualification. I did not know that military are now testing iPhone cases. But anyway I must say that the case is truly exceptional when it comes to protecting your iPhone. It even have a skin protector to complete the job. This maybe bulky and robust or over size I must say but it serves its purpose. You can easily put together the case and inside it is a silicone rubber coating to keep your phone sock free. Some ports and controls are hidden when your phone is on the case so you might have to think this through.  This iPhone 4 case is sold at Amazon.com and you can find Amazon coupon codes here to purchase the case for discounted price.