The pad helps provide relief from back and neck discomfort, as well as sore and aching muscles, promoting overall relaxation and tension relief. The even heat distribution offers comfortable warmth to support muscle recovery. High Quality Comfortable, slightly stretchable neoprene and nylon fabric provides support while allowing air circulation. Adjustable hook-and-loop closure for a secure fit. Designed to be breathable, absorbent, skin-friendly, and flexible for extended wear. Enhanced Warmth This thermal shoulder support features four heating pads on the shoulders (two per side) and one wide heating pad on the back to deliver consistent warmth where it's needed most. Pain Relief Support commonly used by individuals experiencing discomfort from conditions such as frozen shoulder, sprains, strains, rotator cuff issues, bursitis, muscle soreness, tendonitis, stiff joints, or AC joint separation. Additional Benefits May help improve microcirculation, support metabolism, and reduce fatigue. Provides extra warmth during cold weather, making it ideal for daily use in winter. A thoughtful gift for dad, mom, wife, husband, or friends. Size Guide XL: Shoulder width approx. 50cm, fits weight 150-190 lbs L: Shoulder width 45cm-48cm, fits weight 130-150 lbs M: Shoulder width 40cm-44cm, fits weight 110-130 lbs S: Shoulder width 40cm, fits weight 90-110 lbs