Tetra Force Shock-Advance is the new, ultra-safe protective case that features a flexible inner layer with a scratch-resistant back and a frame made from two materials. This means optimal protection for your smartphone against bumps and drops. The innovative shock-absorbing material along the inner frame of the case is capable of dampening and distributing the vibrations generated by impact. The additional air chamber structure connects to the outer frame and absorbs shock effects. The surface of the frame also features a special texture that provides an even more stable and secure grip, giving the entire protective case an incredibly thin and ergonomic design.