Incipio edge. Doesn't add too much bulk. Snaps beautifully and feels snug. Great cut outs for headphone jack, sleep/wake, and volume/silent toggle. Only thing I have to check is if the screen protector incipio gives you bubbles up with it. Right now I'm using Verizon's sp which is cut really short so you can't bubble up. Great matte feel to case also. If you like minamilistic slider cases I highly recommend this one.