Specifically, the Vancouver-based athletic apparel maker says Costco's private-label line Kirkland is selling similar pants, hoodies and jackets at a fraction of the price.

Specifically, the Vancouver-based athletic apparel maker says Costco's private-label line Kirkland is selling similar pants, hoodies and jackets at a fraction of the price.

Lululemon has filed a lawsuit against Costco, claiming the retailer is purposely selling “dupes” at a significantly lower price The technical apparel and athleisure-wear line is suing for an ...