The athleisure company alleged in a lawsuit that Costco is selling discounted "dupes" of some of Lululemon's most popular items.

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.

The Canadian athleisure brand has accused the warehouse club operator of copying at least six of its products, including its Scuba hoodie and men’s pants.