Lululemon sues Costco for selling ‘unauthorized’ versions of its $128 pants

By Jordan Valinsky, CNN New York — Lululemon is suing Costco, alleging that the discount wholesaler is selling knockoffs of its $128 pants and other pricey athleisure clothing. In a lawsuit filed Friday, Lululemon said Costco has “unlawfully traded” on the athleisure brand’s “reputation, goodwill…