The shoulder protector has excellent elasticity, made from soft and comfortable material that is lightweight and thin, providing a close fit to the body. It is convenient to wear without adding pressure on the shoulders.Ergonomically designed, this shoulder warmer uses heat retention technology to help maintain warmth. It can store heat within 30 minutes, helping to protect against cold and provide comfort. The warming effect may support relief from shoulder discomfort and stiffness. It is crafted from high-quality polyester cotton, yarn, and spandex.Available in four sizes to suit different shoulder widths: S, M, L, and XL.Designed for both men and women, ideal for individuals experiencing shoulder discomfort, as well as workers, athletes, and older adults.Item Name: Shoulder Warmer Material: Polyester Cotton, Yarn, Spandex Gender: Unisex Usage: Keep Warm Features: Windproof, Soft, Comfortable Size Details: XL, Suitable Shoulder Width: 50-54cm (Approx.) L, Suitable Shoulder Width: 46-50cm (Approx.) M, Suitable Shoulder Width: 42-46cm (Approx.) S, Suitable Shoulder Width: 37-42cm (Approx.)