Levi's filed two trademark-infringement lawsuits this year against Farm Rio and S/Double for unauthorized use of its red tab mark, according to Modern Retail. The denim giant alleges both brands sold garments bearing red tabs on rear pockets without permission, diluting a mark Levi's has defended since the 1930s. The lawsuits follow a pattern: Levi's has brought similar actions against Kenzo, Brunello Cucinelli, and others in recent years, each time targeting visual elements that echo its arcuate stitching or tab placement.

The mechanic is straightforward. Levi's registers its trade dress—the specific combination of tab color, position, and context—then patrols retail channels and e-commerce for infringement. When it finds a match, it files in federal court, typically seeking injunctive relief and damages. The red tab itself carries no text in many jurisdictions; the shape, hue, and placement alone constitute the protected mark. The lawsuits name specific SKUs, cite consumer confusion as the harm, and invoke the Lanham Act. Most settle before trial, with the defendant agreeing to cease use and destroy inventory.

Why this works: the red tab functions as a recognition heuristic. Decades of advertising and retail presence trained consumers to read a red tab on a jean pocket as Levi's. That association is measurable brand equity, and defending it signals to the market that Levi's will enforce boundaries. The legal action also discourages future copycats; each lawsuit creates precedent and reminds wholesale buyers that sourcing lookalike goods carries risk. For a heritage brand, the tab is not decoration—it is a visual shorthand for authenticity, and protecting it protects pricing power.

A small physical-product brand can run the same play without a law firm on retainer. First, identify the one visual element that will become your recognition mark: a colored hang tag, a specific label shape, a signature closure, a repeated motif on packaging. Make it distinctive, non-functional, and consistent across every SKU. File a trademark application with the USPTO for that mark as used in commerce; the filing fee is $250 to $350 per class. Document your first use date and submit photographs showing the mark on the product and packaging. Once registered, you have legal standing to enforce.

Next, monitor your category. Set Google Alerts for your brand name plus common misspellings. Use reverse image search on your product photos monthly. Check Alibaba, Amazon, and Etsy for listings that echo your mark. When you find infringement, send a cease-and-desist letter before hiring counsel; templates are available through LegalZoom or Rocket Lawyer for under $100. Most small infringers will comply immediately. If they ignore you, a trademark attorney can send a follow-up for $500 to $1,500, and that step alone resolves the majority of cases. Litigation is a last resort, but the registration itself is the deterrent. It signals that you will defend the mark, and that message spreads through your supply chain and competitor set.

The broader pattern: visual marks compound. Every product shipped, every post shared, every retail placement reinforces the association between your mark and your brand. Protecting that mark early—before knockoffs proliferate—preserves the equity you are building. Levi's defends a tab because 90 years of use turned it into currency. You can build the same currency in two years if you start enforcement now.