They are very stable under-foot, both in grip and sole-stiffness which I like. I think there might be some qc issue with the first batch of black Evos which some customers had experienced with the hissing sound when wired. Since she has been walking, I needed something with a harder sole (not crib shoes) that could also get wet. 5 = women?s 7. The unit easily holds 3 pairs of my husbands shoes per shelf (boots, athletic shoes, dress shoes). Likewise the mids are balanced to complete perfection, and every single note, word, and sound element is rendered in near lifelike detail. With the originals, I always found myself adjusting the fit and getting irritated with the feel. Algo que me gusto es la duración de la batería, lo he usado 6 horas continuas y el dispositivo sigue funcionando. But now I close it without any issues I wear this about 5 days out of the week and for about 5 or 6 hours a day depending on mood and what I?m doing. But if youre only considering buying one pair and are unsure which to invest in, then this may help .