Es de una sola pieza, en caso de algún detalle actualizaré mi opinión. Its lack in support to the wire next to the jack is a major fault. The sound quality is the best weve had. No flexibility in the ankle when walking. Theyve been in the shower for one month. They are beautiful and seems will be comfortable as well. I bought this for my daughter?s room to use as a dresser since her room is so small. Just the right size, width and length. En plus, il est livré avec une coque rigide et la notice française. Its my second pair of hands, and works to air dry my clothes perfectly.