Silverts® Hook and Loop Closure Walking Shoe, Size 9, Black, 1 Pair Unna Boot Size: 14 x 13 x Maxi pouch Size: 14 x 13 x 4 * Color: black * High quality memory foam contoured for maximum comfort and support * Features a hypoallergenic breathable mesh fabric cover that helps to prevent heat and moisture build up * Can be placed anywhere along the back of a chair for neck upper middle thoracic or lower back and spine pain relief * Ergonomic design helps to relieve and alleviate both acute and chronic pain from: back aches muscle aches arthritis stenosis herniated disks and general sore backs * Can be used in the home office car airplane wheelchair recliner or anywhere extra lumbar comfort and support is needed * Position the backrest into desired position and prevent slippage using the dual adjustable straps * Cover is removable NOTE: Class II Rx Required * With the powerful rechargeable lithium ion battery this portable device can be used at home at work or on the go and care facilities hook and loop closure that accommodates different levels of swelling