Likelihood of Confusion: Are Personal Training Services Related to Clothing
For e-commerce brands operating in the health, fitness, or lifestyle space, trademark clearance can be deceptively complex. A key issue that frequently trips up applicants is the relatedness of goods and services under Section 2(d) of the Lanham Act—the provision that governs likelihood of confusion. A recent decision from the Trademark Trial and Appeal Board (TTAB) in In re Surf Ready Fitness, Serial No. 90548268 (June 21, 2023) [not precedential], is a valuable case study on how the USPTO evaluates whether seemingly different offerings—like physical training services and clothing—are related for trademark purposes.
Are Personal Training Services Related to Clothing for Trademark Purposes? A Lesson from the TTAB’s Surf Ready Fitness Decision?
Understanding the Legal Framework: The DuPont Factors
Under In re E.I. du Pont de Nemours & Co., 476 F.2d 1357 (C.C.P.A. 1973), the TTAB evaluates likelihood of confusion based on thirteen factors, though not all are relevant in every case. In Surf Ready Fitness, the Board focused on the three most commonly applied:
Also relevant, though not decisive, was the degree of consumer care. Let’s break down how the Board applied these factors in this case.
The Conflict: SRF & Design (Training) vs. SRF (Clothing)
The applicant, Surf Ready Fitness, sought a federal trademark registration of a stylized trademark featuring the letters SRF within a circular design, used in connection with fitness training services, online videos, blogs, and newsletters. The Examining Attorney refused registration, citing a likelihood of confusion with the existing SRF word mark, registered for a broad range of apparel—sweatshirts, hoodies, hats, pants, and similar items.
Similarity of the Marks
The Board found the two marks “very similar” in sight, sound, and commercial impression. Even though the applicant included a stylized design, it did not meaningfully change the mark’s pronunciation or perception. The circular border was considered a non-distinctive “carrier” for the SRF letters. Importantly, the cited trademark registration was in standard characters, meaning it could appear in the same font or style as the applicant’s trademark.
The Board also dismissed the applicant’s argument that SRF in the cited mark would be pronounced “surf” while its own mark would be read as the individual letters “S-R-F.” The TTAB reiterated that there is no “correct” pronunciation of a mark, and consumers may reasonably interpret both marks the same way—potentially as “surf.”
Relatedness of Goods and Services
This was the heart of the trademark dispute. The applicant argued that personal training services are fundamentally different from clothing, and that consumers would not expect them to come from the same source.
But the TTAB disagreed, citing multiple lines of evidence:
In short, the TTAB concluded that the goods and services were commercially related and could be offered under the same mark, making confusion likely.
Channels of Trade and Classes of Consumers
The Board also found overlap in trade channels. Many fitness brands sell apparel directly on their websites alongside online fitness programs, blog content, and other media. Given that the cited registration had no restrictions on channels of trade, the TTAB presumed it could be sold wherever clothing is normally sold—including ecommerce platforms used by fitness businesses.
As for the class of consumers, the TTAB noted that fitness services and clothing are not necessarily expensive or purchased with great care. The Board rejected the applicant’s unsupported assertion that consumers of fitness instruction are highly discerning. Instead, it emphasized the rule that the analysis must consider the least sophisticated purchaser—in this case, someone casually signing up for training or buying a hoodie online.
Practical Takeaways for Fitness Brands and Ecommerce Sellers
This case offers several important lessons:
Conclusion
In Surf Ready Fitness, the TTAB reaffirmed a basic but often misunderstood principle: relatedness under Section 2(d) is not about the goods or services themselves, but about how consumers perceive the connection between them. In today’s ecommerce landscape—especially in fitness and lifestyle sectors—branded clothing and training services often go hand-in-hand.
For startups, personal brands, and online businesses, this case is a reminder to take a holistic view of your brand’s footprint. At our firm, we help ecommerce and service-oriented businesses conduct thorough trademark searches, evaluate potential conflicts, and draft state and federal trademark applications tailored to avoid costly trademark refusals.

