Most neoprene sleeves only provide scratch protection. Though neoprene may feel good and spongy to your hands it actually provides very little in the way of shock protection. The Flak Jacket combines low resilience highly shock absorbing foam with corrugated plastic stiffeners to provide complete protection for your laptop in a slim lightweight solution. Not only is the low resilience foam more environmentally friendly than neoprene but in the event of a fall it's friendlier to your computer as well. This fall don't let your laptop leave the house without its jacket.