This item features a soft feel, eliminating side seams for comfort. The cotton is organic. 【Material】 Starting this season, we've refined the fabric by using thinner threads and increasing the number of threads woven together, resulting in a delicate and skin-friendly texture. Furthermore, by switching from product washing to air tumbler processing, we've achieved a soft and fluffy texture while also reducing water usage by 1 liter per item. This makes it a great product for both the wearer and the environment. 【Design】 The design allows for a 2-way style, with buttons all the way up to the collar, allowing you to adjust the look based on the temperature or your mood. The contrasting piping adds an accent, creating a design focused on sleep that balances both style and comfort. The waist is fully elastic with an adjustment opening, allowing for size adjustments by pulling out and sewing the elastic in place. The elastic is not fixed, so it can be replaced. 【Specifications】 Transparency: Slightly sheer Fabric Thickness: Thin Fit: Relaxed Waist: Full elastic (with adjustment opening)