Numi's undershirts are used by nurses, flight attendants, and menopausal women, but their marketing focuses narrowly on the "professional woman." This avoids diluting the message. Trying to speak to everyone results in speaking to no one; a narrow focus creates a stronger brand identity and more effective campaigns.

Large companies often focus R&D on high-ticket items, neglecting smaller accessory categories. This creates a market gap for focused startups to innovate and solve specific problems that bigger players overlook, allowing them to build a defensible niche.

Instead of viewing niching as restricting business, adopt the "FOCUS" mindset: Fix One Clearly Urgent Struggle. This forces you to solve a high-value problem for a specific audience, which positions you as a category of one, much like the water brand Liquid Death.

A founder of an athletic underwear brand faces a classic strategic choice. One path is to focus narrowly to dominate a niche, like Spanx did. The other is to expand into adjacent products (like sports bras) to create a complete brand system. This highlights the core tension between operational focus and building a broader brand platform.

Niching down doesn't limit your market; it clarifies your value proposition for an ideal customer. This extreme specificity about your product's strengths and weaknesses also appeals to a much larger adjacent audience, who can now confidently evaluate your trade-offs and decide to buy.

Counterintuitively, focusing on a single, powerful SKU can be more effective for initial growth than launching a full product line. It simplifies your message, makes you attractive to distributors who value efficiency, and builds a strong customer base before you introduce new offerings.

Eliminating a popular and profitable product line can be a wise long-term strategy. If a product, even a bestseller, creates brand confusion or pulls focus from your core vision, cutting it can strengthen your primary brand's identity and lead to more dedicated growth.

Numi launched a line of silk blouses that developed its own cult following. However, it created a second, competing brand identity and diverted focus. They phased it out to double down on their core competency—women's undershirts—where they were the undisputed market leader.

Jason Burnt deliberately avoids the larger cosmetic eyebrow market, instead expanding his product line *within* his core niche of medical hair loss (e.g., for sparse brows). This "inch wide, a mile deep" strategy strengthens his brand and avoids diluting his core message to his target audience.