{"title":"Men's Merino Wool Underwear","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eMen's merino wool underwear that stays fresh through three days on the trail, a long-haul flight, or a full week of travel — without the itch, the bulk, or the synthetic smell that follows cotton around. This collection is built for men who want a base layer that starts at the skin and actually does its job.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWhy Merino Wool Works for Underwear\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eMost underwear is designed for one day. Merino wool is designed for more.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe fiber itself is the reason. At 18.5 microns — finer than most human hair — merino bends on contact with skin rather than poking it. That means zero itch, even for men who have always thought wool wasn't for them. OEKO-TEX Class I certified, the same standard applied to baby clothing, so it's confirmed safe for direct skin contact.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBeyond softness, the fiber structure naturally resists odor. Bacteria that cause smell need moisture to grow. Merino absorbs up to 30% of its weight in moisture and moves it away from the skin before it can build up. The result: underwear you can wear for multiple days without the consequences.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eTemperature regulation works both ways too. Merino keeps you from overheating on active days and provides a light layer of warmth when you stop moving. At 180gsm, the blend weight used in this collection sits in the all-season range — warm enough to matter, light enough to forget you're wearing it.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eWho These Are Built For\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIf you're packing for a multi-day hike, merino wool undergarments are the most practical call you can make. One pair does the work of several. No need to hunt for laundry mid-trip or manage a separate synthetic system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eTravelers and one-bag packers have been using merino underwear as a travel staple for years — and this collection already ranks for travel underwear because it genuinely earns that use case. Fresh off a long-haul flight, after a full day of sightseeing, two days into a trail — the performance holds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eFor everyday wear, men with sensitive skin will find that a merino blend at this micron count behaves more like fine cotton than anything traditionally associated with wool. The comfort is consistent wash after wash.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eFabric and Fit at 180gsm\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe boxer briefs in this collection are woven at 180g — a merino blend weight that balances warmth with breathability. Not a heavyweight thermal layer, not a featherweight micro — this sits squarely in the everyday and active-use range.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIf you want to understand how fabric weights affect layering and warmth across all merino garments, the\u003c\/span\u003e\u003ca href=\"https:\/\/merinoprotect.mom\/blogs\/merino-care\/merino-wool-weight-guide\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003emerino wool weight guide\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e covers the full spectrum from 150gsm to 250gsm with practical guidance on when each makes sense.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eCertified and Sourced to a Standard\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThese garments use Australian Merino wool, sourced from farms held to strict animal welfare standards. Woolmark certified. OEKO-TEX Class I. That's the kind of verification that matters when something is worn directly against the skin every day.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAll Merino Protect products carry a 90-day warranty covering manufacturing defects. Register your purchase free at merinoprotect.mom to extend this to a full year and receive 15% off your next order.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eA Note on Sizing\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eMerino Protect garments run slim. We recommend sizing up one size for a comfortable everyday fit — especially for underwear, where fit directly affects comfort during activity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 dir=\"ltr\"\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eWhat are merino wool boxer briefs good for?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eMerino wool boxer briefs are built for situations where cotton falls short — multi-day hiking, travel without laundry access, active sports, or anyone who wants underwear that stays fresh longer. The natural odor resistance of merino fiber means you can wear them through high-output activity without the smell buildup that follows synthetic and cotton options after a single session.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eAre merino wool boxer briefs good for travel?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eYes — and genuinely so. Merino wool underwear packs small, dries fast when hand-washed, and resists odor well enough to rewear without issue. For one-bag travel or carry-on-only trips, a few pairs of merino boxer briefs replace twice the volume of cotton. This is the reason this collection performs so well as travel underwear — it solves a real packing problem.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eHow do you wash men's merino wool underwear?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eMachine wash on a gentle cycle with warm water and a mild detergent. No bleach. No tumble drying — lay flat or hang to dry away from direct sunlight. Done this way, merino underwear holds its shape, elasticity, and softness through hundreds of washes. The 180gsm blend is durable enough for regular active use with proper care.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eDo merino wool boxers run true to size?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eNo — Merino Protect garments run slim. Size up one from your usual size for a comfortable fit, particularly for everyday and active wear. If you're between sizes, go with the larger option. The fabric has enough natural give to accommodate a comfortable fit when sized correctly, and the 180gsm blend retains its shape well after washing.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eIs men's merino wool underwear good for hiking and outdoor use?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIt's one of the best choices available. Merino manages moisture at skin level, resists odor through sustained output, and regulates temperature as conditions change. For multi-day backpacking where laundry isn't an option, merino wool undergarments hold up where synthetic alternatives start to fail — usually by day two. The lack of chafe during sustained movement is a consistent advantage over both cotton and thinner synthetic options.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eWhat's the difference between merino wool underwear and cotton underwear?\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eCotton absorbs moisture and holds it — which leads to chafing, discomfort, and odor accumulation quickly during activity. Merino moves moisture away from the skin, resists odor naturally through the fiber structure, and regulates temperature in both directions. Cotton is also significantly bulkier to pack and slower to dry. For everyday wear the differences are noticeable but manageable. For active or travel use, merino is the more practical material at every level.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAlso explore our\u003c\/span\u003e\u003ca href=\"https:\/\/merinoprotect.mom\/collections\/merino-wool-bottom-base-layers-men\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eMen's Merino Base Layer Bottoms\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e,\u003c\/span\u003e\u003ca href=\"https:\/\/merinoprotect.mom\/collections\/men-s-socks\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eMen's Merino Wool Socks\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e, or the full\u003c\/span\u003e\u003ca href=\"https:\/\/merinoprotect.mom\/collections\/merino-wool-mens-collection\"\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eMen's Merino Collection\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e to complete your base layer system.\u003c\/span\u003e\u003c\/p\u003e","products":[{"product_id":"merino-wool-underwear-mens-boxer-briefs","title":"Men's Merino Blend 180g Boxer Brief","description":"\u003cdiv id=\"title_feature_div\" class=\"celwidget\"\u003e\n\u003cdiv id=\"titleSection\" class=\"a-section a-spacing-none\"\u003e\n\u003cdiv data-cel-widget=\"title_feature_div\" data-csa-c-id=\"mwaiuw-s8a1oa-sgv06a-8g3130\" data-csa-c-is-in-initial-active-row=\"false\" data-csa-c-asin=\"\" data-csa-c-slot-id=\"title_feature_div\" data-csa-c-content-id=\"title\" data-csa-c-type=\"widget\" data-feature-name=\"title\" class=\"celwidget\" id=\"title_feature_div\"\u003e\n\u003cdiv class=\"a-section a-spacing-none\" id=\"titleSection\"\u003e\n\u003cp\u003eThis Men’s Merino Boxer Brief is made with an ultra-lightweight corespun merino blend fabric that keeps the soft, next-to-skin comfort of pure Merino wool, while enhancing durability and delivering superior odor resistance, moisture management, and quick-drying performance to keep you comfortable all day.\u003cbr\u003e\u003cbr\u003e*For hygiene and safety reasons, opened underwear, base-layer bottoms, and other intimate garments cannot be returned or exchanged.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFabric:\u003cbr\u003e\u003c\/strong\u003eMaterial: 84% Merino Wool, 12% Nylon, 4% Spandex - \u003ca title=\"about merino wool\" href=\"https:\/\/merinoprotect.mom\/pages\/merino-wool\"\u003eabout merino wool\u003c\/a\u003e\u003cbr\u003eFabric Weight: 180gsm\u003cbr\u003eFiber Diameter: 18.5 micron\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003eUPF Rating: 50+\u003cbr\u003eWoolmark® Certified \u003cbr\u003eOEKO-TEX® STANDARD 100 Certified (Class I – Baby Safe)\u003cbr\u003eResponsible Wool Standard® (RWS) Certified\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cp\u003eLayer Type: Underwear，Base layer - \u003ca href=\"https:\/\/merinoprotect.mom\/pages\/how-to-layer\" title=\"how to layer\"\u003eLearn more\u003c\/a\u003e\u003cbr\u003eBoxer Brief Style: Close-fitting with leg coverage to prevent chafing\u003cbr\u003eFlatlock seam: Prevents friction\u003cbr\u003eBoxer Style: Loose fitting and breathable without fly.\u003cbr\u003eStyle #: MT15\u003c\/p\u003e\n\u003ch3\u003eUses\u003c\/h3\u003e\n\u003cp\u003eIdeal Seasons: Spring, Summer, Fall, and Winter\u003cbr\u003eActivities: Long hikes, travel, camping, biking, running, fishing, hunting, and snow sports.\u003c\/p\u003e\n\u003ch3\u003eCare\u003c\/h3\u003e\n\u003cp\u003eWash with like colors\u003cbr\u003eDo not bleach\u003cbr\u003eDo not tumble dry\u003cbr\u003eLine dry in shade\u003cbr\u003eDo not dry clean\u003cbr\u003eMachine wash warm\u003cbr\u003e\u003ca title=\"Wool Care\" href=\"https:\/\/merinoprotect.mom\/pages\/wool-care\"\u003eLearn more\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eOur Guarantee\u003c\/h3\u003e\n\u003cp\u003e90-Day Warranty - \u003ca title=\"Return and Exchange Policy\" href=\"https:\/\/merinoprotect.mom\/pages\/returns\"\u003eReturns Policy\u003c\/a\u003e\u003ca href=\"https:\/\/merinoprotect.mom\/pages\/returns\"\u003e\u003c\/a\u003e\u003cbr\u003eOne-Year Extended Warranty with Registration - \u003ca title=\"Warranty Policy\" href=\"https:\/\/merinoprotect.mom\/pages\/warranty\"\u003eWarranty Policy\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Merino Protect","offers":[{"title":"Black \/ S","offer_id":47868637937975,"sku":"5040","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ M","offer_id":47868637905207,"sku":"5041","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ L","offer_id":47868637872439,"sku":"5042","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ XL","offer_id":47868637839671,"sku":"5043","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ XXL","offer_id":47868637806903,"sku":"5044","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black Heather \/ S","offer_id":50450565497143,"sku":"5170","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Black Heather \/ M","offer_id":50450565529911,"sku":"5171","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Black Heather \/ L","offer_id":50450565562679,"sku":"5172","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black Heather \/ XL","offer_id":50450565595447,"sku":"5173","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black Heather \/ XXL","offer_id":50450565628215,"sku":"5174","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Navy \/ S","offer_id":50566003130679,"sku":"6112","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Navy \/ M","offer_id":50566003163447,"sku":"6113","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Navy \/ L","offer_id":50566003196215,"sku":"6114","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Navy \/ XL","offer_id":50566003228983,"sku":"6115","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Navy \/ XXL","offer_id":50566003261751,"sku":"6116","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Army Green \/ S","offer_id":50566003294519,"sku":"6117","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Army Green \/ M","offer_id":50566003327287,"sku":"6118","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Army Green \/ L","offer_id":50566003360055,"sku":"6119","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Army Green \/ XL","offer_id":50566003392823,"sku":"6120","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Army Green \/ XXL","offer_id":50566003425591,"sku":"6121","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0853\/0339\/4615\/files\/1_6616fe19-7544-4e18-97d4-5c9264e065e9.jpg?v=1760429505"},{"product_id":"mens-merino-wool-boxer-with-fly","title":"Men's Merino Blend 180g Boxer with Fly","description":"\u003cdiv id=\"title_feature_div\" class=\"celwidget\"\u003e\n\u003cdiv id=\"titleSection\" class=\"a-section a-spacing-none\"\u003e\n\u003cdiv data-cel-widget=\"title_feature_div\" data-csa-c-id=\"mwaiuw-s8a1oa-sgv06a-8g3130\" data-csa-c-is-in-initial-active-row=\"false\" data-csa-c-asin=\"\" data-csa-c-slot-id=\"title_feature_div\" data-csa-c-content-id=\"title\" data-csa-c-type=\"widget\" data-feature-name=\"title\" class=\"celwidget\" id=\"title_feature_div\"\u003e\n\u003cdiv class=\"a-section a-spacing-none\" id=\"titleSection\"\u003e\n\u003cp\u003eThis Men’s Merino Boxer Brief is made with an ultra-lightweight corespun merino blend fabric that keeps the soft, next-to-skin comfort of pure Merino wool, while enhancing durability and delivering superior odor resistance, moisture management, and quick-drying performance to keep you comfortable all day.\u003cbr\u003e\u003cbr\u003e*For hygiene and safety reasons, underwear is not eligible for return or exchange.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFabric:\u003c\/strong\u003e\u003cbr\u003eMaterial: 84% Merino Wool, 12% Nylon, 4% Spandex - \u003ca title=\"about merino wool\" href=\"https:\/\/merinoprotect.mom\/pages\/merino-wool\"\u003eabout merino wool\u003c\/a\u003e\u003cbr\u003eFabric Weight: 180gsm\u003cbr\u003eFiber Diameter: 18.5 micron\u003cspan style=\"color: rgb(64, 64, 64);\"\u003e\u003cbr\u003eUPF Rating: 50+\u003cbr\u003eWoolmark® Certified \u003cbr\u003eOEKO-TEX® STANDARD 100 Certified (Class I – Baby Safe)\u003cbr\u003eResponsible Wool Standard® (RWS) Certified\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cp\u003eLayer Type: Underwear，Base layer - \u003ca href=\"https:\/\/merinoprotect.mom\/pages\/how-to-layer\" title=\"how to layer\"\u003eLearn more\u003c\/a\u003e\u003cbr\u003eBoxer Brief Style: Close-fitting with leg coverage to prevent chafing\u003cbr\u003eFlatlock seam: Prevents friction\u003cbr\u003eBoxer Style: Loose fitting and breathable with fly.\u003cbr\u003eStyle #: MT53\u003c\/p\u003e\n\u003ch3\u003eUses\u003c\/h3\u003e\n\u003cp\u003eIdeal Seasons: Spring, Summer, Fall, and Winter\u003cbr\u003eActivities: Long hikes, travel, camping, biking, running, fishing, hunting, and snow sports.\u003c\/p\u003e\n\u003ch3\u003eCare\u003c\/h3\u003e\n\u003cp\u003eWash with like colors\u003cbr\u003eDo not bleach\u003cbr\u003eDo not tumble dry\u003cbr\u003eLine dry in shade\u003cbr\u003eDo not dry clean\u003cbr\u003eMachine wash warm\u003cbr\u003e\u003ca title=\"Wool Care\" href=\"https:\/\/merinoprotect.mom\/pages\/wool-care\"\u003eLearn more\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eOur Guarantee\u003c\/h3\u003e\n\u003cp\u003e90-Day Warranty - \u003ca title=\"Return and Exchange Policy\" href=\"https:\/\/merinoprotect.mom\/pages\/returns\"\u003eReturns Policy\u003c\/a\u003e\u003ca href=\"https:\/\/merinoprotect.mom\/pages\/returns\"\u003e\u003c\/a\u003e\u003cbr\u003eOne-Year Extended Warranty with Registration - \u003ca title=\"Warranty Policy\" href=\"https:\/\/merinoprotect.mom\/pages\/warranty\"\u003eWarranty Policy\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Merino Protect","offers":[{"title":"Black Heather \/ S","offer_id":50841430458679,"sku":"6052","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black Heather \/ M","offer_id":50841430491447,"sku":"6053","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black Heather \/ L","offer_id":50841430524215,"sku":"6054","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black Heather \/ XL","offer_id":50841430556983,"sku":"6055","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black Heather \/ XXL","offer_id":50841430589751,"sku":"6056","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ S","offer_id":50841430294839,"sku":"6047","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ M","offer_id":50841430327607,"sku":"6048","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ L","offer_id":50841430360375,"sku":"6049","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ XL","offer_id":50841430393143,"sku":"6050","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ XXL","offer_id":50841430425911,"sku":"6051","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Army Green \/ S","offer_id":50841430786359,"sku":"6057","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Army Green \/ M","offer_id":50841430819127,"sku":"6058","price":29.99,"currency_code":"USD","in_stock":false},{"title":"Army Green \/ L","offer_id":50841430851895,"sku":"6059","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Army Green \/ XL","offer_id":50841430884663,"sku":"6060","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Army Green \/ XXL","offer_id":50841430917431,"sku":"6061","price":29.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0853\/0339\/4615\/files\/1_0f25ba5f-0849-410b-9011-0588b681b50a.jpg?v=1760672109"}],"url":"https:\/\/merinoprotect.mom\/collections\/mens-merino-wool-underwear.oembed","provider":"Merino Protect","version":"1.0","type":"link"}