{"product_id":"rothco-ecwcs-gen-iii-level-ii-mid-weight-thermal-breakaway-bottoms","title":"Rothco ECWCS Gen III Level II Mid-Weight Thermal Underwear Breakaway Bottoms","description":"\u003cp class=\"product-lead\"\u003eThe Rothco ECWCS Gen III Level II Mid-Weight Thermal Underwear Breakaway Bottoms are cold-weather base-layer pants designed for active-duty personnel and tactical users operating in extreme cold. Built as part of Level II of the Extended Cold Weather Clothing System (ECWCS), a military layering standard in use since the 1980s, these bottoms combine moisture-wicking performance with a breakaway closure system for fast removal over boots. Available in sizes Small through 2XL.\u003c\/p\u003e\n\n\u003ch2\u003eBreakaway Design for Rapid Removal\u003c\/h2\u003e\n\u003cp\u003eThe Rothco ECWCS Level II Breakaway Bottoms feature hook-and-loop closures running down the outside of each leg. This construction allows the wearer to remove the bottoms quickly without taking off boots first, a practical advantage when transitioning between environments or adjusting layers in the field. The elastic waistband accommodates a range of body types without requiring a precise fit adjustment.\u003c\/p\u003e\n\n\u003ch2\u003eMoisture Management and Odor Control\u003c\/h2\u003e\n\u003cp\u003eThe 93% polyester \/ 7% spandex construction gives these bottoms moisture-wicking properties that move perspiration away from the skin, helping to keep the wearer warm and dry during sustained activity in cold conditions. The grid fleece material also provides odor defense, which matters during extended wear between washing opportunities, a common reality in field or operational settings.\u003c\/p\u003e\n\n\u003ch2\u003ePart of a Coordinated Layering System\u003c\/h2\u003e\n\u003cp\u003eThese bottoms are the lower half of the ECWCS Gen III Level II system. A matching Level II Mid-Weight Underwear Top is available separately, allowing users to build out a complete base layer that works within the broader ECWCS layering framework. Wearing matched pieces from the same system helps ensure consistent thermal and moisture performance across the torso and legs.\u003c\/p\u003e\n\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBreakaway Hook-and-Loop Leg Closures:\u003c\/strong\u003e run the full outside length of each leg for removal without removing boots\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMoisture-Wicking Construction:\u003c\/strong\u003e 93% polyester \/ 7% spandex fabric moves moisture away from skin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOdor-Defending Grid Fleece:\u003c\/strong\u003e material resists odor buildup during extended wear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eElastic Waistband:\u003c\/strong\u003e accommodates a wide range of body types\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eECWCS Level II Rated:\u003c\/strong\u003e part of the military Extended Cold Weather Clothing System layering standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMatching Top Available:\u003c\/strong\u003e pairs with the Rothco Level II Mid-Weight Underwear Top\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n      \u003cth\u003eDetail\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBrand\u003c\/td\u003e\n      \u003ctd\u003eRothco\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMaterial\u003c\/td\u003e\n      \u003ctd\u003e93% Polyester \/ 7% Spandex\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eClosure System\u003c\/td\u003e\n      \u003ctd\u003eHook-and-loop down outside of each leg\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWaistband\u003c\/td\u003e\n      \u003ctd\u003eElastic\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eECWCS Level\u003c\/td\u003e\n      \u003ctd\u003eLevel II (Mid-Weight)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSizes\u003c\/td\u003e\n      \u003ctd\u003eS, M, L, XL, 2XL\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCold Weather Rated\u003c\/td\u003e\n      \u003ctd\u003eYes\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCountry of Origin\u003c\/td\u003e\n      \u003ctd\u003eChina\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eWho This Is For and Isn't\u003c\/h2\u003e\n\u003cp class=\"product-fit-yes\"\u003eThese bottoms suit military personnel, law enforcement, and outdoor users who need a mid-weight thermal base layer that can be removed quickly over boots in cold-weather environments. The elastic waist and five-size range make them accessible to a broad range of body types, and the ECWCS Level II designation means they integrate with standard military cold-weather layering systems.\u003c\/p\u003e\n\u003cp class=\"product-fit-no\"\u003eThese are base-layer thermal underwear and provide no ballistic, stab, or cut protection of any kind. They are not a standalone outer layer and are not designed for warm or temperate climates. Users needing a heavier insulating layer should look at ECWCS Level III or above options.\u003c\/p\u003e\n\n\u003ch2\u003eCommon Questions\u003c\/h2\u003e\n\u003ch3 class=\"product-faq-q\"\u003eWhat does the breakaway closure actually do?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eThe Rothco ECWCS Level II Breakaway Bottoms have hook-and-loop closures running down the outside of each leg. This lets the wearer pull the bottoms off without removing boots first, which is useful when transitioning between indoor and outdoor environments or when adjusting layers quickly in cold conditions.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eWhat is ECWCS Level II and how does it fit into a layering system?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eECWCS stands for Extended Cold Weather Clothing System, a military layering standard used by active-duty personnel since the 1980s. Level II is the mid-weight base layer, worn over a lighter Level I layer and under heavier insulating and shell layers. These bottoms occupy that mid-weight base-layer position in the system.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eDo these bottoms have any ballistic or protective rating?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eNo. The Rothco ECWCS Level II Breakaway Bottoms are thermal base-layer underwear. They carry no ballistic, stab-resistance, or cut-resistance rating of any kind. The \"Level II\" designation refers to the ECWCS cold-weather layering tier, not a protection standard.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eIs there a matching top?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eYes. Rothco offers a matching Level II Mid-Weight Underwear Top designed to pair with these bottoms. Wearing the matched set provides consistent thermal and moisture-wicking performance across the full torso and legs within the ECWCS layering framework.\u003c\/p\u003e\n\n\u003ch3 class=\"product-faq-q\"\u003eHow should these be cared for?\u003c\/h3\u003e\n\u003cp class=\"product-faq-a\"\u003eWashing instructions are not stated for the Rothco ECWCS Level II Breakaway Bottoms. Follow the care label on the garment itself for confirmed instructions.\u003c\/p\u003e","brand":"Rothco","offers":[{"title":"S","offer_id":67126891381107,"sku":"RTC-69050-SML","price":56.99,"currency_code":"USD","in_stock":true},{"title":"M","offer_id":67126891413875,"sku":"RTC-69050-MED","price":56.99,"currency_code":"USD","in_stock":true},{"title":"L","offer_id":67126891446643,"sku":"RTC-69050-LRG","price":56.99,"currency_code":"USD","in_stock":true},{"title":"XL","offer_id":67126891479411,"sku":"RTC-69050-XLRG","price":56.99,"currency_code":"USD","in_stock":true},{"title":"2XL","offer_id":67126891512179,"sku":"RTC-69051","price":58.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1926\/7025\/files\/69050-A2.webp?v=1792117417","url":"https:\/\/bulletproofzone.com\/products\/rothco-ecwcs-gen-iii-level-ii-mid-weight-thermal-breakaway-bottoms","provider":"Bulletproof Zone","version":"1.0","type":"link"}