• Unique center channel averts pressure on spine
• Contoured Therasoft® material keeps its shape
• Nonabrasive, antistatic, washable
Unique cut-away contours slope away from pressure points at the tailbone. Wedge shape helps promote proper seating posture to maintain the spine’s natural S-shaped curve. 15-3/4w x 10d x 3h. Manufacturer’s limited lifetime warranty.