Ivy Skin has released a military-grade iPhone 4 case, the Quattro4 Wrangler. The case combines a hard resin exterior, and uses polycarbonate, aluminum and TPU with shock-absorbent material as an inner liner. The iPhone's headphone plug and on-off switch are covered with moisture resistant seals. The volume control buttons are also covered, and the dock connector is covered by a snap open door when not charging. The case uses a polarized front face touch-through grill to protect the iPhone screen.
