Fashion law was big business in 2025, and the courtroom became the most important runway. Luxury houses, ultra fast fashion players, and resellers all found themselves testing the outer limits of how much control a brand can really have over a boot silhouette, a waitlist strategy, a supply chain, or even a JPEG of a bag. The result is a new playbook for anyone operating at the intersection of fashion, tech, and global retail, with judges signaling that the next phase of growth will be shaped as much by legal risk as by creative direction.
From UGG’s loss on protecting the silhouette of its own bestsellers, to Hermès defending the Birkin both in store and in the metaverse, to Shein and Temu turning U.S. courts into a proxy battlefield for ultra fast fashion, judges drew fresh lines around what counts as fair competition, protected creativity, and overreach in an era of resale platforms, NFTs, and global DTC players.
Top 5 Fashion Lawsuits in 2025
| Case Study | Key Conflict | Legal Concept |
| UGG vs. Quince | Design Dupes | Trade Dress & Genericness |
| Hermès Birkin | Sales Tactics | Antitrust & Tying |
| Shein vs. Temu | Market Rivalry | Copyright & Unfair Competition |
| MetaBirkins | Digital Assets | Trademark vs. Free Speech |
| Chanel vs. WGACA | Resale Market | Trademark Fair Use |
1. UGG vs. Quince (Deckers Outdoor Corp. v. Last Brand, Inc.)
UGG and Quince became a landmark case in 2025 for what fashion brands can realistically protect in court. The dispute centered on whether Deckers Outdoor Corp., the parent company of UGG, could use trademark and trade dress law to block Quince from selling lookalike versions of its Classic Ultra Mini boots and Tasman slippers. In October 2025, a federal judge in the Northern District of California ruled that these UGG designs are legally generic, meaning they have become the standard look for that type of boot and slipper, and therefore cannot be monopolized as protectable trade dress. The ruling effectively opened the door for direct to consumer brands like Quince to continue selling dupes without infringing UGG’s intellectual property, underscoring how difficult it is to protect the physical design of a fashion item once it becomes the default silhouette for an entire category.
2. The Birkin “Tying” Case (Cavalleri v. Hermès)
The Birkin tying case (Cavalleri v. Hermès) pushes on a different fault line, antitrust and allegedly anticompetitive sales strategies. In this suit, consumers accused Hermès of forcing them to spend thousands of dollars on other products such as scarves, jewelry, and home goods just to be considered for the opportunity to buy a Birkin bag, framing the practice as an illegal tying arrangement under U.S. competition law. A federal judge in California dismissed the claims in September 2025, finding that the plaintiffs failed to properly define the relevant market, prove Hermès’ market power, or show real harm to competition. The plaintiffs have since appealed to the Ninth Circuit Court of Appeals, keeping the issue alive and putting pressure on luxury brands to ensure their exclusivity tactics do not cross the line into unlawful coercion.
3. The Ultra-Fast Fashion War (Shein v. Temu)
The ultra fast fashion war between Shein and Temu has turned U.S. courts into a proxy battleground for a global fight over price, power, and supply chains. Throughout 2025, the two China based platforms traded lawsuits that included racketeering (RICO) and antitrust allegations, along with claims of copyright infringement and supplier intimidation. One court in Washington, D.C., threw out key trade secret and antitrust claims brought by Temu, ruling that Shein’s alleged attempts to lock up suppliers largely took place outside U.S. jurisdiction and did not clearly violate American competition law. At the same time, judges have allowed certain copyright, trade dress and Digital Millennium Copyright Act claims to proceed, turning intellectual property law into a major tool for shaping who wins in the ultra fast fashion race.
4. Hermès vs. MetaBirkins (The NFT Appeal)
In the digital realm, Hermès fight against the MetaBirkins NFTs raised new questions about trademarks in the metaverse. The brand originally won a 2023 jury verdict against artist Mason Rothschild, who created and sold MetaBirkins non fungible tokens depicting fuzzy digital versions of the iconic bag, with a court finding that the NFTs infringed Hermès trademarks rather than being protected artistic commentary. That dispute moved up to the Second Circuit Court of Appeals in 2025, forcing judges to weigh how far trademark rights extend into virtual goods and whether such digital works are shielded by the First Amendment. The outcome will shape how fashion brands police their signatures in NFTs, gaming environments, and future metaverse platforms.
5. Chanel vs. What Goes Around Comes Around (WGACA)
Chanel’s long running clash with vintage reseller What Goes Around Comes Around (WGACA) has major implications for resale and circular fashion. The central question is whether a reseller can prominently use a luxury brand’s logos, imagery, and trademarks in marketing, store signage, social media, and advertising, without implying an official relationship. In a series of decisions in late 2024 and early 2025, courts issued injunctions restricting how WGACA could use Chanel’s branding, finding that some uses risked confusing consumers about affiliation or endorsement. The case reinforces that while the First Sale Doctrine allows owners to resell genuine goods, it does not grant a free license to leverage a brand’s trademarked marketing assets, pushing resellers to be far more cautious in how they present second hand luxury online and in stores.
