SewPad™ is filled with a thick cushion of proprietary viscoelastic polymer gel– the same stuff used in surgical mats and wheelchair pads. Unlike foam, gel doesn’t bottom-out and it provides comfort and support by diffusing and distributing pressure. Upholstered in a plush layer of AirFlex™ fabric, SewPad™ helps your fanny stay cool while the no-slip bottom keeps if from sliding around in your chair. SewPad™ was designed for quilters and crafters, but we think you’ll find other uses as well. Church. Stadium seats and anywhere else that you might expect to be sitting for a good while. Being comfortable is a wonderful thing!