We use washed twill Belgian linen of moderate thickness (1/40 count). These 100% linen pajamas have a gauze-like texture and become more comfortable to the touch the more you wear them. The near-white off-white color is accented with thick piping tape and embroidery on the chest pocket in the same color. All the stitching parts, such as the sides of the body and the armholes, are folded and sewn up, so they do not get caught, are not frayed, and are durable. The brand tag avoids the neck and is subtly under the front body. All pajamas come with a bag made of the same material (H34×W30) for convenient travel. Please avoid tumble drying when washing. Due to the nature of the fabric, it will shrink slightly, so please consider the size selection.