Size: Unisex, Free * Due to shipping costs, we will ship only the contents, removing them from the box. 【What is Kyozai (Rounded Back)?】 Is it having a rounded back? Is it looking down?… Both apply, but the important point is that the chin is protruding forward. The number of people with poor posture is increasing with the increased use of computers and smartphones. 【Because of Kyozai (Rounded Back)】 When you look at a PC screen with your back rounded, your chin naturally comes forward, right? This kind of Kyozai (Rounded Back) is called "smartphone kyozai (rounded back)" or "IT kyozai (rounded back)," but... it seems that modern people are in an environment where they naturally develop kyozai (rounded back). 【Free Size】 Unisex and can be worn as a posture supporter by adults and children. The length of the band can be adjusted for correction strength, so you can adjust the tightness to your liking. Anyone can easily wear it and it fits various body types. It's popular because it's suitable for both men and women, so you can share it with your family! 【Wearable All Season】 Because it uses elastic and soft fabric, there is less pressure, it is less likely to get stuffy, and the fit is excellent. It boasts excellent breathability and elasticity and can be worn all season. 【Correct your posture just by wearing it!!】 To correct your posture, you need to go to a chiropractic clinic to fix the distortion, but it's perfect for those who say, "I don't have time..." or "I don't have money..."! First, let's try what we can do!! ◎Since it's free shipping, we will ship the product after removing it from the box. 　　Therefore, we will open the package. 　　Please understand and purchase.