Thank you for viewing! This product is a 2XL (3L) size. We also have other sizes available! ■ Do you have these problems? ■ You often get stiff shoulders due to desk work and computer work Long hours of smartphone use You want to improve your posture but can't quite do it ■ Product Details ■ Ergonomically designed to support posture improvement Addresses a wide range of concerns such as hunchback, stiff shoulders, and rounded shoulders The belt uses Velcro, so you can adjust the tightness Mesh fabric for excellent breathability Unisex, washable, and easy to use ◎ ※ This product is not a medical device, but an item that supports posture. ※ Instructions are not included. Please check the product images for how to use it. ■ Size ■ Size: 2XL size (3L) Waist: Approximately 70-84cm ※ S, M, L, and XL sizes are also available! ■ Material ■ Polyester 90%, Polyurethane 10% ■ Notes ■ To keep the product price down, we will ship it compactly Please refrain from returns or exchanges due to differences in image or size mismatch If you have any questions, please comment before purchasing