The TPU case fits perfectly and clings like a second skin to the HTC One. By rough spots on the back it has a super hand feeling and I have so far never felt the cell phone could slip out of his hand with. All ports and buttons are easy to reach, or react too well even though they are surrounded with the sheath. And camera sensors are not impaired. The display is not protected in this envelope, and therefore I recommend any screen protectors. The HTC One adapts its case in the leather case for the belt, at the beginning a little tight but that is changing once the leather has adapted to the form.