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Powerful Insulation: This heavyweight thermal underwear top provides powerful insulation to help retain body heat, keeping you warm, protected, and comfortable in extreme cold weather conditions.  Robust Material Construction: Constructed from durable heavyweight raschel knit fabric, this military thermal underwear shirt is designed to hold its shape and resist wear, delivering reliable warmth and long-term performance as a cold weather base layer. Comfortable Design: Featuring elastic ribbed knit cuffs, this thermal knit underwear top creates a secure seal between your cold weather gear and gloves, helping trap heat while blocking out cold air. Ideal for Extreme Cold Weather: Built for outdoor enthusiasts, tactical professionals, hunters, skiers, and anyone who depends on dependable extreme cold weather gear, this thermal base layer top performs in harsh winter environments. 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Perfect for those long winter nights, this thermal underwear is made of a warm and comfortable knit fabric that ensures you stay snug. The suit features a full cut design for added comfort, making it an excellent choice for lounging at home or layering under your winter clothing. The 8-button placket closure allows for easy dressing and undressing, while the front vertical seat flap with a button provides convenience without compromising on warmth.\u003c\/p\u003e\n\u003cp\u003eStay warm and cozy in style with Rothco's classic one-piece Union Suit. Perfect for those long winter nights, this thermal underwear is made of a warm and comfortable knit fabric that ensures you stay snug. The suit features a full cut design for added comfort, making it an excellent choice for lounging at home or layering under your winter clothing. The 8-button placket closure allows for easy dressing and undressing, while the front vertical seat flap with a button provides convenience without compromising on warmth. This timeless Union Suit combines practicality with classic style, making it a must-have addition to your cold-weather wardrobe.\u003c\/p\u003e\n\u003ch4 style=\"margin-top:24px;margin-bottom:8px;\"\u003eSpecifications\u003c\/h4\u003e\u003ctable style=\"border-collapse:collapse;width:100%;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eCold Weather\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eAge\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eAdult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eGender\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eMens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eCotton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eMaterial Specs\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003e100% Cotton\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eWeather\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eCold Weather\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eClosures And Fasteners\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eButtons\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eProduct Origin\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eCHN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003ePrintable\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Rothco","offers":[{"title":"S","offer_id":52600850776375,"sku":"6453-S","price":43.67,"currency_code":"USD","in_stock":true},{"title":"L","offer_id":52600850809143,"sku":"6453-L","price":43.67,"currency_code":"USD","in_stock":true},{"title":"XL","offer_id":52600850841911,"sku":"6453-XL","price":43.67,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0487\/5605\/files\/union-suit-s-hit-a-double-226.webp?v=1791904576"},{"product_id":"ecwcs-gen-iii-level-ii-underwear-crew-top","title":"ECWCS Gen III Level II Underwear Crew Top","description":"\u003cp\u003eGet ready to fight the cold with our ECWCS Gen III Level II Underwear Crew Top. Made from breathable, mid-weight grid fleece material that is great for layering, the thermal military shirt is designed to keep you warm, comfortable, and dry, even in the harshest winter weather. The waffle thermal also features anti-microbial and anti-odor defense, ensuring that you stay fresh and clean through winter combat missions and cold weather activities.\u003c\/p\u003e\n\u003cp\u003eGet ready to fight the cold with our ECWCS Gen III Level II Underwear Crew Top. Made from breathable, mid-weight grid fleece material that is great for layering, the thermal military shirt is designed to keep you warm, comfortable, and dry, even in the harshest winter weather. The waffle thermal also features anti-microbial and anti-odor defense, ensuring that you stay fresh and clean through winter combat missions and cold weather activities. Stay Warm \u0026amp; Dry: The base layer t-shirt wicks sweat and moisture away for optimum comfort, swiftly transferring it to the top layer for a quick dry. This allows you to move freely without your clothing sticking to you, ideal for winter operations, hiking, camping, skiing, snowboarding, hunting, and other outdoor activities. Comfortable Fit: Built from a soft polyester \/ spandex blend, the grid fleece fabric easily flexes and contorts with your body for optimum comfort. The extended back tail ensures total coverage when crouching or moving, while the thumb holes keep your sleeves in place. Active-Duty Approved: The crew neck shirt is part of the Extended Cold Weather Clothing System (ECWCS) and is a must-have for any military personnel, tactical professional, or outdoor enthusiast in cold climates. Whether you are gearing up for a mission or camping up in the mountains, you will want to keep a pair on you. Better Together: Stay warm and comfortable this winter with our matching ECWCS Gen III Level II Underwear Bottoms. The base layer pants feature the same breathable, mid-weight grid fleece material as the top, ensuring that you’re ready for the mission at hand.\u003c\/p\u003e\n\u003ch4 style=\"margin-top:24px;margin-bottom:8px;\"\u003eSpecifications\u003c\/h4\u003e\u003ctable style=\"border-collapse:collapse;width:100%;\"\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eGender\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eMens\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eMaterial Specs\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003e93% Polyester \/ 7% Spandex\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eWeather\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eCold Weather\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eClosures And Fasteners\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003ePull On\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eAge\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eAdult\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eSleeve Type\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eLong Sleeve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eAntimicrobial\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eCold Weather\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eMoisture Wicking\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003e\u003cul style=\"margin:0;padding-left:16px;\"\u003e\n\u003cli\u003eSpandex\u003c\/li\u003e\n\u003cli\u003ePolyester\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight:bold;padding:6px 12px 6px 0;vertical-align:top;white-space:nowrap;\"\u003eProduct Origin\u003c\/td\u003e\n\u003ctd style=\"padding:6px 0;\"\u003eCHN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"Rothco","offers":[{"title":"Brown \/ S","offer_id":52600918638903,"sku":"P69140-AR 670-1 Coyote Brown.S","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Brown \/ M","offer_id":52600918671671,"sku":"P69140-AR 670-1 Coyote Brown.M","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Brown \/ L","offer_id":52600918704439,"sku":"P69140-AR 670-1 Coyote Brown.L","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Brown \/ XL","offer_id":52600918737207,"sku":"P69140-AR 670-1 Coyote Brown.XL","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Brown \/ 2XL","offer_id":52600918769975,"sku":"P69140-AR 670-1 Coyote Brown.2XL","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Brown \/ 3XL","offer_id":52600918802743,"sku":"P69140-AR 670-1 Coyote Brown.3XL","price":47.99,"currency_code":"USD","in_stock":false},{"title":"Black \/ S","offer_id":52600918835511,"sku":"P69140-Black.S","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ M","offer_id":52600918868279,"sku":"P69140-Black.M","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ L","offer_id":52600918901047,"sku":"P69140-Black.L","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ XL","offer_id":52600918933815,"sku":"P69140-Black.XL","price":43.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ 2XL","offer_id":52600918966583,"sku":"P69140-Black.2XL","price":45.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ 3XL","offer_id":52600918999351,"sku":"P69140-Black.3XL","price":47.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0487\/5605\/files\/ecwcs-gen-iii-level-ii-underwear-crew-top-brown-s-hit-a-double-645.webp?v=1793545818"}],"url":"https:\/\/hitadouble.com\/collections\/mens-undershirts\/color-gray.oembed","provider":"HIT a Double","version":"1.0","type":"link"}