Simply slide your phone into the Slim hard-shell case, starting at the top. Align the phone buttons with the case holes and then gently snap the case into place.
If you have an Extra Durable case, simply remove the flexible bumper from the shell and place it around your phone. Slide your bumper-wrapped phone into the case, starting at the top. Align the phone buttons with the case holes and then gently snap the case into place.