The product is horrible to what they propose. Has zero function than he says he is. Low quality of the product. Came full of loose threads from the seam of the material. Acts only as mere strips that cannot apply the necessary force to help with posture correction. Other more complete products on that same platform are much better and more anatomical than this one. Clearly only wanted to re-take advantage of spare parts to make money and deceive those who buy. Finally, I do not indicate or buy the product.