I liked them until I wore them for about 3 hours, which is easy to do if your stuck inside & watching YouTube, but they really hurt my ears. * Sound - These replacement pads sound identical to the originals. Merrell always feel comfortable. Also, the "glow in the dark" color does not actually glow in the dark, even if you leave it in the sun/under a light for hours. You need to wear some type of slip or undergarment that will not reveal your panty line. Respecto a la manera en la que se enciman las cajas sólo tiene un pequeño problema, las uniones entre las cajas al final no quedan tan estables, pero considerando que es un objeto que vas a acomodar en tu closet y no lo vas a mover, no existe mayor problema. Just what I needed ha ha I dont know how this product is still in the market, even. And the bottoms are very supportive for my arch. Not as comfortable as the others but again the lower price tag justifies this.