<p><span style="font-size: 1px;">Ergonomic "U" Shaped Cutout for Back and Leg Pressure Relief:&nbsp;</span></p> <p><span style="font-size: 1px;">1.The ergonomically designed "u" shaped cutout keeps your coccyx suspended above hard seating surfaces, Its curve design minimizes the pressure that the chair can cause to improve blood circulation,relieving pressure the back and legs.Supports recovery from lower back problems, herniated discs, tailbone injuries, sciatica and other spinal issues.&nbsp;</span></p> <p><span style="font-size: 1px;">2.Suitable for Many Occasions：Provides Lower Back Pain &amp; Sciatica Relief, Great for Office,Driving,Traveling,car seat or wheelchair use. The seat cushion can provide extra cushion for you to drive the vehicle for a long time or work in the office.&nbsp;</span></p> <p><span style="font-size: 1px;">3.Good Heat Dissipation:Gel memory foam seat cushion made of premium quality durable memory foam with cool off gel layer on top for superior comfort.Good heat dissipation effect, won't feel hot when sitting.&nbsp;</span></p> <p><span style="font-size: 1px;">4.High-quality Materials:This cushion made of premium quality durable memory foam,non-slip rubber bottom, machine-washable zipper</span></p>