Galaxy Note 4 Case, Spigen® [ALUMINUM BUMPER] Galaxy Note 4 Case Bu... http://www.amazon.com/dp/B00MAWP9SY/ref=cm_sw_r_udp_awd_GrUivb0ZJH92S

It's aluminum, I had the case but the aluminum frame bent and ended up breaking when I tried to bend it back in place.