Description: Vent hole design makes it breathable and does not feel stuffy. Eight way stretching design makes the waist forced evenly to reduce lumbar compression. Strong adhesive fastener tape design allows you to adjust tightness as needed. Four support strips design makes it ergonomic and fit the lumbar curve while providing strong support. Made of high quality stretch fabric, webbing and PVC material, it is durable. We have 3 sizes for you to choose, S, M, L. It is suitable for fitness, running, daily work, mountain climbing, post-injury repair. Item Name: Waist Support Belt Material: PVC,Webbing,Stretch Fabric Gender: Unisex Suitable Age: Adult Features: Back Support, Stretchy, Lightweight Size Details: Size S Length: 90cm-100cm/35.43"-39.37" (Approx.) Size M Length: 105cm-120cm/41.34"-47.24" (Approx.) Size L Length: 120cm-140cm/47.24"-55.12" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Waist Support Belt