This is a posture correction belt for a hunched back and rounded shoulders. I purchased it in March 2025 and only tried it on once, never using it again. Size: M Purchase Price: 2,680 yen The box is not included. The following is an excerpt from the product description on the purchase site: [3-Step Manual for Achieving Beautiful Posture] Supervised by a chiropractor with 13 years of experience, this manual is designed to help you naturally acquire beautiful posture. [Excellent Breathability] It is processed to significantly reduce stuffiness when worn, allowing for long-term wear. [Washable] It can be washed, so you can always keep it clean. You can also improve concerns about dirt and odor from long-term use, making it more comfortable to use. [Excellent Comfort] It is made of very soft material and is stretchy, allowing you to use it while relaxing. [30-Day Guarantee] Minaori Fitness products come with a 30-day quality guarantee. If there is a problem with the product, we will accept returns and exchanges, so please rest assured.