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TomboyX was founded in 2013 by Fran Dunaway and Naomi Gonzalez to make gender- and size-inclusive underwear for a community the market ignored.

It is a Certified B Corporation, makes its products in women-owned factories in Los Angeles, Vancouver and China, and gives to LGBTQ, women’s rights and social-justice organisations.

Product Categories
BasicsFashionGender NeutralLingerieUnderwear
Attributes
Inclusive
Brand offers a range of products that are considered inclusive to a wider group of people.
Minority Owned
Brand is owned by Black, Indigenous, and/or people of color.
Organic
Products are made from organic materials.
Sustainable Materials or Ingredients
Either all or most products are made with sustainable materials or ingredients.
Traceable Supply Chain
Brand is able to fully trace their entire supply chain from end to end.
Woman Owned
This brand is owned by a woman or a group of women.
Certifications / Memberships
B Corp
B Corp
The B Corp Certification, administered by the nonprofit B Lab, recognizes companies that meet high standards of verified social and environmental performance, transparency, and accountability. Certified B Corps balance profit with purpose, committing to responsible practices that benefit workers, communities, customers, and the planet while embedding sustainability into their business model.
Location

United States

Rating Summary

Nature & Animals

Most of the range is organic cotton the brand lists as OEKO-TEX certified, and some is closed-loop TENCEL modal, both lower-impact fibres, with a small share of spandex for stretch.

Packaging is recyclable cardboard with reusable, biodegradable product bags.

Less is published about the brand’s climate footprint and end-of-life recycling.

Communities & Wellbeing

As a Certified B Corporation the brand meets an independently assessed bar on workers, and it reports above-industry fair wages for its own staff by its own account.

The brand says its factories are majority WRAP and FLA certified, pay a living wage, and are visited regularly, and that it produces in women-owned facilities.

Values & Governance

Diversity and inclusion sit at the centre of the brand, which is woman-owned and queer-owned, offers an exceptionally inclusive size range, and uses its platform to advance gender and body inclusion.

It gives regularly to social-justice causes and publishes its practices as a Certified B Corporation.

Product Performance

Independent testers praise the quality and comfort, especially the smooth, non-digging waistband and snug fit, and the durable, non-trend design is made to stay in the wardrobe rather than be replaced.

Initial rating

From public information

Our indicative assessment places TomboyX in our Rising tier, based on the brand’s public disclosures. Rising is our third tier, for brands scoring in the top 40% of the brands we have rated within their category. Learn more about our ratings.

If you shop through our links we may earn a commission. Commissions never influence our ratings.

This initial rating was assessed on 9 July 2026 from public information, using tomboyx.com, the B Lab directory, and independent reviews. Certifications shown were checked against the issuing bodies' public registries in July 2026. Initial ratings apply our standard 22-criteria methodology to published evidence only.

Brands typically score higher in a full rating because they can evidence more. Learn more about our scoring.

Is this your brand?

This initial rating is based on information that TomboyX has made public. Our full rating lets brands evidence more and generally receive a higher rating. For TomboyX, that could include a company climate footprint, target or renewable-energy disclosure, a take-back path, water data for its TENCEL and cotton, a GOTS certification, and production-waste tracking.

A full rating also unlocks your brand’s tier badge here and in every guide that features you. It also includes a badge licence for your own site. There is a fee for a full rating. The process takes a couple of weeks and about two hours of your team’s time.

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