If done correctly, your buttock implants should not be palpable. To ensure the success of your procedure, Be sure to choose a board certified plastic surgeon with extensive experience and high success rates with buttock implants.
I have placed Butt Implants subfascially, as well as intra and sub muscular. I haven't had a single patient that I couldn't feel the implant. I also agree that the best and most natural option is fat transfer to the buttocks, The Brazilian Butt Lift. I have never had a single one that looks or feels unnatural.