Griffin Survivor All-Terrain for iPhone 4/4s, pink/black - Ridiculously over-engineered? Or the perfect case for your iPhone 4 no matter where you're headed Fits iPhone 4 models from all carriers Independently tested to meet conditions outlined in US Department of Defense MIL-STD-810 and UK Department of Defense Def-Stan 00-35 Integral Display shield deflects wind and rain (Test: up to 200 mm/hr for 1 hour) Rigid internal frame protects against shocks and drops (Test: drop on flat concrete surface from 6'/1.8 m) Sealed ports block blown sand and dust (Test: up to 18 m/sec for 1 hour)