Thermoskin Lumbar Support Beige Small Small 27.5 - 31.75 * When sizing measure around the middle of the waist * Provides pain relief and compression for muscle injuries and general lower back dysfunctions; injuries to the lumbar discs and the sacro-illiac joint * Has 2 internal flexible metal stays for support and adjustable elastic side straps * Captures body heat & increases blood flow * Allows skin to ventilated and release moisture * Shipping Carton Size: 14 L x 12 W x 4 H