One particularly unhappy customer said she purchased a pair of replacement pants in June.
But when she tried them on, she discovered that they were "completely see-through," according to a complaint she posted on the company's website.
She wrote that when she tried to return them, a salesperson said Lululemon had fixed the "sheer" problem and that her claim was "impossible."
To prove her case, the customer claims she stuck a camera inside the pants and snapped a photo through the material. The image, though slightly blurry, shows a scenic view of what appears to be a small city.
Business Insider was unable to independently verify that the photo was taken through a pair of Lululemon pants because the customer left no personal information on the website. Lululemon did not respond to our request for a comment about the issue.
Here's the customer's full complaint from Lululemon's website:
