That makes Nike’s setback on Wednesday all the more notable. Nike air max shares were down about 6 per cent in afternoon trading after the company reported its fiscal second quarter results on Tuesday after markets closed. Revenue rose 10 per cent, more than offsetting an 8 per cent gain in input costs. And net earnings rose 22 per cent, to 91 cents (U.S.) a share after excluding one-time items, beating analysts’ expectations for earnings of 88 cents. So why are cheap air max shoes investors bailing out? They appear to be concerned about costs rising even more in the coming quarters, making it difficult for Nike to keep up with higher prices and fewer air max ltd  discounts. As Dow Jones pointed out, Nike management believes that costs for labour, cotton and transportation should rise over the next three or four quarters, putting pressure on earnings.