Cover layer of 3d spacer fabric allows air to flow underneath you
Orthro-polymer gel has a large cutout in the middle to help minimize pressure in that prostrate region- think hemorrhoid donut.
Cutouts in the thigh area of the gel help promote air flow as well.
Non-slip bottom to help keep it in place.
All pads come with clip in straps strap for extra security.
Lots of comfort- not a lot of money
2 year replacement warranty