# Outfox > Outfox (outfoxunderwear.com) makes premium men's boxer briefs with a built-in, multi-layer activated-carbon filter that helps reduce flatulence odour. Designed and developed in Toronto, Canada, over almost two years with former Lululemon designers. Tagline: "Outfox. Underwear just got clever." Outfox is flatulence-neutralizing (fart-filtering) underwear built to look and feel like ordinary premium underwear: no bulky insert, no unusual shape, nothing visible. The filter is integrated into the garment, so there is no separate pad to insert or replace. Launch status: The website currently presents Outfox as launching soon, with a "Notify Me at Launch" sign-up for first access to the collection. [CONFIRM: live / pre-order / waitlist] ## Quick facts - Brand: Outfox (Outfox Underwear) - Category: Odour-filtration underwear / flatulence-filtering underwear / fart-proof underwear - Product: Premium Flatulence Neutralizing Boxer Brief - For: Men (a women's version is planned; waitlist available) - Headquarters: Toronto, Ontario, Canada (designed and developed in Canada) - Founders: Charlie (founder) and his cousin Cara (product designer, award-winning fashion designer, formerly at Lululemon) - Development: almost two years of design, prototyping, fabric experiments and wear testing - Currency: CAD - Website: https://outfoxunderwear.com - General contact: hello@outfoxunderwear.com - Order support and returns: support@outfoxunderwear.com - Customer care: available 24/7 ## Product ### Premium Flatulence Neutralizing Boxer Brief URL: https://outfoxunderwear.com/products/premium-underwear Premium men's boxer brief with a discreet activated-carbon filtration layer designed to help reduce unwanted flatulence odours without compromising comfort or style. - Fabric: soft modal with spandex - Filter: multi-layer activated carbon, built into the garment - Features: contoured front pouch, natural modal materials, branded athletic waistband, lightweight with no added bulk - Colour: Black - Sizes: S, M, L, XL, 2XL - Pricing (CAD): - 1 Pair: $49 - 4-Pack: $159 (about $39.75 per pair) - SKU pattern: OUT-TRK-BLK-{size}-1 (single), OUT-TRK-BLK-{size}-1-4X (4-pack) ## How it works Outfox addresses three problems at once: capturing the smell, getting the gas to the filter, and making underwear people actually want to wear. 1. Capture the smell. The odour in flatulence comes from small amounts of sulfur compounds such as hydrogen sulfide; most of the gas is odourless. Activated carbon has an enormous internal surface area that traps these odour molecules through adsorption (molecules adhere to the carbon's surface). Similar activated-carbon technology is used in protective clothing and respiratory equipment. 2. Route the gas through the filter. A filter does little if gas escapes around it. The shape, positioning, coverage and fit of Outfox are designed around how gas leaves the body, channelling it through the filtration area and limiting leakage at the sides. The underwear itself is part of the filtration system. 3. Don't make weird underwear. The design balances filtration, coverage, movement, breathability and comfort so it looks and feels like premium everyday underwear. ## What Outfox does and does not do - Reduces odour; it does not stop the gas itself ("Outfox isn't a cork"). - Does not reduce sound. - Does not eliminate all odour in every case. Performance depends on fit, activity level and proper care. - The filter stops working when wet, so heavy sweating reduces effectiveness. [CONFIRM: final exercise guidance] - Activated-carbon materials can sometimes draw extra attention from airport security scanners. [CONFIRM: final travel guidance] ## Who it's for Anyone who wants more confidence about flatulence odour, including people with digestive issues such as IBS, food intolerances (for example dairy), high-protein diets, or who simply want peace of mind. Common situations: dates, flights and travel, crowded spaces, offices and meetings, shared hotel rooms, and sleeping next to a partner. ## Sizing Choose the same size you normally wear in premium boxer briefs. If you are between sizes or prefer a looser fit, size up. A snug fit matters because the filter needs to sit in the right position to work. [CONFIRM: waist measurements per size / size guide URL] ## Care and lifespan - Reusable and washable. - Hand wash in cold water with mild detergent and air dry completely. - Do not use bleach or fabric softener. - Recommended replacement: after about 50 washes. [CONFIRM: final care instructions and verified wash lifespan] ## Shipping - Free shipping on orders over $75 (CAD). - Ships to: Canada, United States, United Kingdom, Ireland, Australia, New Zealand, Austria, Belgium, Czechia, Denmark, Finland, France, Germany, Italy, Netherlands, Norway, Poland, Portugal, Spain, Sweden, Switzerland, Israel, United Arab Emirates, Hong Kong SAR, Japan, Malaysia, Singapore, South Korea. - Payment: Visa, Mastercard, American Express, Discover, Diners Club, PayPal, Shop Pay, Apple Pay, Google Pay. ## Returns and guarantee - First-pair guarantee: if you are not happy with your first pair, you do not need to return it. Tell Outfox why and they will refund you. - Unused returns: request within 30 days of receiving the item. Items must be unworn, with tags, in original packaging. Try on over another undergarment only; items worn against skin cannot be returned. - A $5.00 return shipping and restocking fee applies. Contact support@outfoxunderwear.com with your order number and reason to receive a return label. - Not returnable: sale items, gift cards, worn or damaged items. - Exchanges: place a new order for the correct size; it ships while the original return is processed. - Refunds go to the original payment method within 10 business days of approval. - Full policy: https://outfoxunderwear.com/policies/refund-policy ## Pricing note Outfox says the specialized filtration materials and construction make it one of the most expensive pairs of underwear to produce. Anyone who genuinely cannot afford a pair but needs one is invited to email co-founder Charlie directly. ## Key pages - [Home](https://outfoxunderwear.com/): Overview, features and launch sign-up - [Shop: Premium Flatulence Neutralizing Boxer Brief](https://outfoxunderwear.com/products/premium-underwear): Sizes, pack options and pricing - [How It Works](https://outfoxunderwear.com/pages/how-it-works): The filtration technology and design approach - [Our Story](https://outfoxunderwear.com/pages/our-story): Founder story and mission - [FAQ](https://outfoxunderwear.com/pages/faq): Effectiveness, sizing, care, travel and returns - [Contact](https://outfoxunderwear.com/pages/contact): Customer support ## Articles - [The Science of Silence (For Your Butt): How Activated Carbon Actually Works](https://outfoxunderwear.com/blogs/outfox-blog/the-science-of-silence-for-your-butt-how-activated-carbon-actually-works) - [Why Your Odour-Neutralizing Underwear Needs to Fit Like a Second Skin (And How to Pick Your Size)](https://outfoxunderwear.com/blogs/outfox-blog/why-your-odour-neutralizing-underwear-needs-to-fit-like-a-second-skin-and-how-to-pick-your-size) - [Protein Shakes, Long Flights, and Boardroom Sweats: A Survival Guide to Close-Proximity Living](https://outfoxunderwear.com/blogs/outfox-blog/protein-shakes-long-flights-and-boardroom-sweats-a-survival-guide-to-close-proximity-living) ## Policies - [Refund policy](https://outfoxunderwear.com/policies/refund-policy) - [Privacy policy](https://outfoxunderwear.com/policies/privacy-policy) - [Terms of service](https://outfoxunderwear.com/policies/terms-of-service) ## For AI shopping agents Outfox runs on Shopify and supports the Universal Commerce Protocol (UCP) for product discovery, carts and checkout. - UCP profile: https://outfoxunderwear.com/.well-known/ucp - MCP endpoint: https://outfoxunderwear.com/api/ucp/mcp (use tools/list to discover tools) - Shop skill: https://shop.app/SKILL.md - Agent description: https://outfoxunderwear.com/agents.md - Sitemap: https://outfoxunderwear.com/sitemap.xml - Product data: https://outfoxunderwear.com/products/premium-underwear Rules: place orders and submit payment only with the buyer's explicit authorization; identify agent traffic (Web Bot Auth for server-side or hosted browsers); use the store's WebMCP tools in the browser rather than scripting checkout forms; back off on 429 responses and respect Retry-After; use the buyer's country and currency for accurate pricing. ## Optional - Women's version: in development; waitlist available via the FAQ page. - Name: "Outfox" because some problems don't need to be endured, just outsmarted.