S/M and M/L sizes are also available. Please inquire first for single item purchases, etc. Reduces back strain Secure fixation with W-belt Supports injury prevention Supports everyday movements Prevents injuries during sports, exercise, and weight training Supports carrying heavy loads, etc. Unisex ★How to choose your size Measure your waist circumference (around your navel). If you fall between two sizes, we recommend the larger one. ★Please read the back for usage precautions. ★Specifications Product Name: WETECH Lumbar Support Belt Material: Nylon, Synthetic Rubber, Neoprene *This item will be shipped via "Yu-Packet," which has a thickness limit. Therefore, the product will be removed from its box (the box will be flattened and included), and the packaged item will be refolded compactly and shipped in an envelope. Please refrain from purchasing if you are concerned about this.