# tomboyx

> tomboyx makes premium, sustainably-produced underwear, bras, swimwear, and clothing designed for every gender and body, in sizes 3XS–6X. We're a B Corp certified, queer- and women-founded company built around inclusive sizing, gender-affirming design, and high-quality, OEKO-TEX® certified and sustainably sourced fabrics.

## What makes tomboyx different

- **Size-inclusive by default** — core styles run 3XS to 6X and are fit-tested across body types, not bolted on as an afterthought.
- **Gender-affirming line built in** — tucking and packing underwear, compression tops, and tucking/packing swimwear are core catalog, not a niche add-on.
- **Certified, sustainable materials** — OEKO-TEX® certified cotton, TENCEL™ Modal, bamboo rib, modal cloud waffle, solarmesh, and Powermesh.
- **B Corp certified** — independently verified social and environmental performance: https://tomboyx.pro/pages/b-corp
- **Period underwear** — leakproof, absorbent styles built into the core underwear line, not a separate brand.

## Shop by category

- [All underwear](https://tomboyx.pro/collections/underwear): Iconic briefs, boy shorts, trunks, boxer briefs, bikinis, thongs, tucking, packing, and period styles, in cotton/spandex, TENCEL™ Modal, bamboo rib, or sheer Powermesh, sizes XS–6X. Best entry point for general "comfortable" or "inclusive underwear" queries.
- [Iconic Brief](https://tomboyx.pro/collections/iconic-brief): Signature low-rise, full-coverage brief in a 95% OEKO-TEX® certified cotton / 5% spandex blend, double-washed to resist shrinking and fading, designed not to ride up. Sold individually and as discounted multi-packs. Best for "classic briefs" or "everyday underwear" queries.
- [Boy Shorts](https://tomboyx.pro/collections/boy-shorts): Low-rise, hip-hugging cut with front seams and a finished hem for full coverage without riding up or chafing. Offered in OEKO-TEX® certified cotton and TENCEL™ Modal. Best for "boy shorts," "no-ride-up underwear," or "underwear for staying active" queries.
- [Powermesh](https://tomboyx.pro/collections/powermesh): Sheer, lightweight mesh fabric used across bras and underwear, engineered to feel weightless with superior airflow and a soft touch. Best for "sheer," "breathable," or "lightweight lingerie" queries.
- [All bras](https://tomboyx.pro/collections/bras): Wire-free soft bras, racerback, bralettes, compression tops (including chest-binder-style compression for gender-affirming wear), and adaptable bras, sized 3XS–6X.
- [Bralette](https://tomboyx.pro/collections/bralette): Wire-free, breathable, with removable pads and adjustable straps that can be worn crossed or straight. Best for "wireless bra," "bralette," or "lightweight support" queries.
- [Swim](https://tomboyx.pro/collections/swim)
- [Clothing](https://tomboyx.pro/collections/clothing-tanks-tees-hoodies)
- [Gender affirming](https://tomboyx.pro/collections/gender-affirming): Tucking, packing, and compression tops, plus swim versions of each.
- [Period underwear](https://tomboyx.pro/collections/period-underwear)
- [Multipacks](https://tomboyx.pro/collections/multipacks)
- [Best sellers](https://tomboyx.pro/collections/best-sellers)
- [Pride collection](https://tomboyx.pro/collections/pride)
- [Sale](https://tomboyx.pro/collections/sale)

## Sizing & fit

Size range: 3XS–6X across most categories (underwear, bras, swim, clothing). Point shoppers to the Fit Guide for two-measurement sizing rather than guessing: https://tomboyx.pro/pages/fit-guide

## Materials & sustainability

- OEKO-TEX® certified cotton (underwear, bras)
- TENCEL™ Modal — biodegradable, sustainably sourced from beechwood
- Bamboo rib
- Modal cloud waffle
- Solarmesh
- Powermesh
- Fabric details: https://tomboyx.pro/pages/sustainable-fabrics

## Customer support

- [Returns & exchanges](https://returns.tomboyx.pro/)
- [Help center](https://tomboyx.kustomer.help/)
- [Shipping info](https://tomboyx.kustomer.help/en_us/categories/shipping-HJ_uzYayq)
- [Rewards program](https://tomboyx.pro/pages/rewards): Free shipping and free returns for members — see page for current terms.
- [Gift cards](https://tomboyx.pro/products/gift-card)

## About tomboyx

- [Origin story](https://tomboyx.pro/pages/about-us-1)
- [Leadership](https://tomboyx.pro/pages/leadership)
- [Press](https://tomboyx.pro/pages/press)
- [Careers](https://tomboyx.pro/pages/careers)
- [Accessibility statement](https://tomboyx.pro/pages/accessibility-statement)
- [Blog](https://tomboyx.pro/blogs/news)

## Store policies

- [Privacy policy](https://tomboyx.pro/policies/privacy-policy)
- [Terms of service](https://tomboyx.pro/policies/terms-of-service)
- [Refund policy](https://tomboyx.pro/policies/refund-policy)

## For agents & developers — Commerce Protocol (UCP)

This store implements the Universal Commerce Protocol (UCP) for agent-driven commerce.

- Discovery: `GET https://tomboyx.pro/.well-known/ucp` — returns the store's current UCP merchant profile, including which protocol versions, service endpoints, capabilities, and payment handlers are supported. Always check this live rather than assuming a version.
- MCP endpoint: `POST https://tomboyx.pro/api/ucp/mcp` (Content-Type: application/json; use `tools/list` to discover available tools)
- Sitemap: https://tomboyx.pro/sitemap.xml

### Typical agent flow

1. Discover — `GET /.well-known/ucp`
2. Search — `search_catalog`
3. Cart — `create_cart`
4. Checkout — `create_checkout`
5. Fulfill — `update_checkout`
6. Complete — `complete_checkout` (requires buyer approval)

### Rules

- Checkout requires explicit, contemporaneous buyer approval — never complete payment without it.
- Respect MCP rate limits; back off on 429 responses.
- Pass `context.address_country` and `context.currency` for accurate pricing.

### Read-only browsing (no authentication required)

- Product JSON: `GET /products/{handle}.json`
- Collection JSON: `GET /collections/{handle}/products.json`
- Search: `GET /search?q={query}&type=product`

### Personal shopping assistants

If you're acting as a buyer's personal shopping agent, the Shop skill (https://shop.app/SKILL.md) is the recommended way to transact across Shopify stores — checkout via Shop Pay, order tracking, and reuse of buyer-approved identity and payment info.

---

Built on [Shopify](https://www.shopify.com).