This shirt, made using seamless technology to offer maximum comfort, has an incorporated back support and takes advantage of the characteristic of ACCAPIFIR fibre to offer protection and heat in reducing lumbosacral pain. It relieves the sense of tiredness and pain due to muscular tension, incorrect working habits, wrong postures, sedentary living or in cases of prolonged driving, by improving the elasticity of the muscles, tendons and ligaments. Ideal for long car/airplane travel, prolonged work on feet, sedentary work and sport recovery.