Stripe & Stare and the Case for Sustainable Basics

Who Stripe & Stare are

Stripe & Stare is a British underwear brand founded in 2017 by Katie Lopes and Nicola Piercy. They started with one product — knickers made from beechwood-derived TENCEL Modal — and built a sustainable basics business that grew to multi-million-pound revenue by 2026. The core proposition is straightforward: most women's underwear is uncomfortable, made from synthetic materials that don't breathe, and produced in supply chains with significant environmental and labor concerns. Stripe & Stare's response: use a sustainable cellulose fiber (TENCEL Modal) that's softer than cotton, breathable, and biodegradable. Sell directly to consumers without department-store markups. Make the underwear actually nice.

Why their growth matters

Stripe & Stare's search volume grew about 5,600% over 24 months — one of the steepest growth signals in the sustainable basics category. The trajectory matters because it disproves a common assumption: that sustainable basics are a niche category for committed environmentalists, not a mainstream market. Stripe & Stare buyers aren't primarily motivated by sustainability. They're motivated by comfort and quality. The sustainability story is reassurance, not the primary purchase driver. This pattern — sustainable products winning on functional benefits, with sustainability as the kicker — is the model that's driving real category growth.

• 01

  Primary purchase driver: comfort and fit.

• 02

  Secondary driver: better materials than typical underwear (TENCEL Modal vs synthetic).

• 03

  Sustainability: the deciding factor between Stripe & Stare and similar comfortable basics.

What to buy from Stripe & Stare

The brand has expanded beyond knickers into a fuller basics range. The strongest products remain the original underwear category, where the TENCEL Modal performs best — comfortable for all-day wear, breathable for warm weather, soft enough that customers report consistently re-buying.

• 01

  Original Knickers: the brand's hero product, in classic and high-rise cuts.

• 02

  Bralette: TENCEL Modal in unstructured styles for comfort over support.

• 03

  Camisoles and sleep shorts: extending the comfort-basics concept into loungewear.

• 04

  Multi-packs: the most economical way to build a Stripe & Stare rotation; typically 3 or 5 pair packs at meaningful discounts.

How Stripe & Stare compares to alternatives

The sustainable basics market has several competitors at similar price points. Each has different strengths.

• 01

  Stripe & Stare: TENCEL Modal, British-made, focused on comfort and breathability. Best for everyday underwear.

• 02

  Organic Basics: GOTS-certified organic cotton, broader category range (tees, underwear, loungewear). Best for full basics rotation.

• 03

  Boody: bamboo-derived fabric (Lyocell process), broader size range. Best for plus-size and extended sizes.

• 04

  Pact: GOTS-certified organic cotton, US-based, B Corp certified. Best for shoppers prioritizing US production.

• 05

  Knickey: organic cotton, recycling program (returns turn into industrial-grade material). Best for end-of-life consideration.

What the case study reveals

Stripe & Stare's growth signals broader truths about the sustainable basics market: comfort and quality win primary purchase decisions, sustainability is a tiebreaker rather than the deciding factor, and direct-to-consumer distribution allows sustainable brands to be price-competitive with conventional alternatives while still funding ethical sourcing. The brands that succeed in this category solve a functional problem first (uncomfortable underwear, low-quality tees, ill-fitting basics) and bring sustainability as a credible secondary benefit. The brands that lead with sustainability as the primary value proposition tend to stay niche.