Lululemon accuses Costco of making duplicates of several products, including its popular Scuba hoodies, Define jackets and ABC pants. Lululemon says one of the duplicates that Costco sells is the Hi-Tec Men’s Scuba Full Zip, with the lawsuit showing a screenshot image of Costco’s website showing the item priced at $19.97.

Lululemon has filed a lawsuit against Costco accusing the chain of selling knockoff versions of its athleisure apparel for discounted prices. But is it illegal? Reporting for TODAY, NBC’s Vicky Nguyen shares a look at the lawsuit and the growing trend of dupes.