Anti-Thrust Seat Cushion M2 20 W X 18 D X 2-3/4 H Inch Foam / Gel

Deep lateral and medial leg contours promote postural alignment

Coccyx relief cutout eliminates pressure on the tailbone and spine

Non-skid bottom fabric offers hook and loop attachment

Constructed with dual density foam, a molded foam base, and Quadra3D® Gel pack

The M2 Anti-Thrust cushion provides anterior pelvic build-up to prevent forward migration

The pressure-relieving Quadra3D gel pack reduces shear forces and heat build-up