Core Viewpoint - Lululemon has filed a lawsuit against Costco, accusing the warehouse retailer of selling low-priced knockoffs of its popular athleisure apparel, thereby infringing on its patents and profiting illegally from its reputation and labor [1][2]. Group 1: Lawsuit Details - Lululemon claims that Costco is selling unauthorized replicas of its products, including popular items like the Scuba hoodie, Define jacket, and ABC pants [2]. - The lawsuit includes evidence such as screenshots from Costco's website, showing a Hi-Tec men's Scuba full-zip jacket priced at $19.97, while Lululemon's similar jackets are priced over $100 each [3]. - Lululemon is seeking a jury trial and demands that Costco cease the sale of the alleged knockoff products, along with unspecified damages [5]. Group 2: Company Statements - A spokesperson for Lululemon emphasized the company's commitment to innovation and the significant investment in product development, stating that it takes the protection of intellectual property seriously and will take legal action when necessary [2]. Group 3: Previous Legal Context - Lululemon had a similar legal dispute with Peloton in 2021, which later resulted in a five-year partnership where Lululemon became Peloton's primary apparel partner [6].

Core Concept - The article discusses the evolution of golf apparel from a symbol of wealth and status to a trendy choice among young people, blending elements of "old money" and sports fashion to create a new sense of sophistication [1][9]. Group 1: Golf Apparel Trends - The concept of "Golfcore" emerged in 2021, modernizing traditional golf attire with stylish and functional designs that appeal to younger aesthetics [2]. - Brands like Bogey Boys and Malbon Golf are merging retro and street styles, reflecting a shift in how golf apparel is perceived and worn [4][19]. - The influence of athletes like Tiger Woods has led to a focus on comfort and performance in golf clothing, making it more appealing to a broader audience [6][7]. Group 2: Demographics and Participation - The pandemic has shifted perceptions of golf, with a significant increase in participation among younger demographics, particularly those aged 18-34, who now represent around 6.3 million players in the U.S. [6][9]. - In China, the number of registered youth golfers has grown by 28% since 2021, indicating a rising interest in the sport among younger generations [31]. Group 3: Market Dynamics - The blending of high fashion and golf apparel is attracting more brands to enter the market, potentially leading to lower prices due to economies of scale [31][33]. - New luxury brands like Redan are redefining golf as a luxurious lifestyle choice, emphasizing exclusivity and high-quality materials [33][36].