The slimmer, relaxing contour of the Slimrest promotes proper posture in any chair while providing support and comfort for your lower back. The gentle wings hug you from behind and help keep you in the correct position. Precision-cut, contoured foam for durability and performance. Durable fabric cover. The positioning belt is not included in this standard version of the Slimrest. Please email sales@igohealth.com if you would like to purchase the Delux version which comes with the positioning belt.