Workman MEDIHEAL ROOM Pile Long Sleeve Shirt [Size] 3L [Color] Black Unopened Will be shipped compressed. - Fatigue recovery wear registered as general medical equipment - High-purity ceramics, using unique technology, are kneaded into the fibers to radiate far-infrared rays released from the body. - Creates an environment to recover from fatigue through the blood circulation-promoting effects of far-infrared rays. For a comfortable relaxation time! - Soft pile material - Fatigue reduction - Promotes blood circulation - Relieves muscle stiffness and tension - Reduces muscle fatigue