BackSupport w/o Air Large Utilizes the breathable Tri Back stretch mesh material combined with supportive V shaped elastic configuration * Mesh Panels and Ventilaion Hole: These features increase breathability and enhance comfort * Overlapping Double Pull Strap Design: These straps provide additional support to the lumbar and abdominal areas * Flexible Stays: Positioned to provide optimum support in the lumbar area * Gripper Strips: Rubber material is strategically sewn inside each support to prevent migration * Shipping Carton Size: 16 L x 12 W x 6 H