Incipio's DualPro case for the Galaxy S8 features a 2-layer system with a hard plastic outer shell and a shock absorbing TPU inner lining. Although the shell can be detached from the inner layer, it's not really designed for that and will make the device uncomfortable to hold.
Incipio says the case provides "military grade drop protection" with claims it can withstand drops of up to 12 ft. You can buy the DualPro case in 7 different colors at the link below.
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