The gear4 Battersea Case is equipped with D3O. This high-tech material provides unrivalled protection against falls and is used by Olympic ski teams as well as the military. Gear4 equips its cases with D3O to protect your smartphone from falls, bumps and blows. gear4 is the first case manufacturer to use the latest generation of D3O, which provides more protection from every single cubic millimeter than comparable materials. So gear4 can deliver cases that are sleek, stylish and protective and make the difference for you and your smartphone. Both for big performances and for small accidents.