Many modern sex dolls come equipped with a variety of customizable features designed to enhance comfort and personalization. These dolls often include adjustable joints, allowing users to position limbs naturally and find their preferred posture. Customizable facial expressions, eye color, and hairstyles add to the sense of realism and comfort, helping users feel more connected. Temperature control systems enable warming or cooling the doll to mimic human body temperature, increasing comfort during use. Some models also offer customizable firmness levels in specific areas, allowing users to select a soft or firm feel depending on their preferences. Internal support structures can be tailored for better weight distribution and ease of handling, reducing physical strain. Additionally, skin textures and orifice designs can often be personalized, providing a more realistic and comfortable experience. The ability to choose and modify these features helps users create a highly personalized experience, making interactions more natural, satisfying, and comfortable over time.