{"product_id":"men-undershirts-mens-winter-thermal-underwear-thin-fleece-elastic-compression-fitness-for-winter-sports-first-layer-wear","title":"Men's Thin Fleece Thermal Compression Underwear — Warm Base Layer","description":"\u003ch2\u003eThe Layer That Makes Everything Warmer.\u003c\/h2\u003e\u003cp\u003eA good thermal base layer is the foundation of cold-weather dressing — it traps body heat close to the skin, manages moisture during activity, and adds meaningful warmth without the bulk of an extra outer layer. This thin fleece thermal compression underwear delivers all three in a slim, comfortable fit that layers invisibly under any outfit.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThin fleece construction\u003c\/strong\u003e — lightweight fleece that provides genuine warmth without adding bulk under outer layers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompression fit\u003c\/strong\u003e — close-fitting construction that supports muscles and traps body heat efficiently\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal insulation\u003c\/strong\u003e — designed to retain body heat in cold conditions for outdoor and winter use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture-wicking fabric\u003c\/strong\u003e — pulls sweat away from the skin during active use to prevent chilling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour-way stretch\u003c\/strong\u003e — moves with the body for unrestricted movement during outdoor activities\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlatlock seams\u003c\/strong\u003e — flat, smooth seams that don’t rub or chafe under outer layers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWho It’s For\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOutdoor enthusiasts who need a warm, lightweight base layer for hiking, skiing, and cold-weather activities\u003c\/li\u003e\n\u003cli\u003eCommuters who want thermal underwear that layers invisibly under everyday clothing\u003c\/li\u003e\n\u003cli\u003eAthletes who train outdoors in cold conditions and need moisture-wicking thermal protection\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCare Instructions\u003c\/h3\u003e\u003cp\u003eMachine wash cold on gentle cycle. Tumble dry low or hang dry. Do not bleach or iron.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIs it suitable for extreme cold?\u003c\/strong\u003e\u003cbr\u003eThe thin fleece construction provides meaningful warmth for cold conditions. For extreme cold (below freezing), layer with a mid-layer fleece and waterproof outer shell for full protection.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it show under clothing?\u003c\/strong\u003e\u003cbr\u003eThe slim compression fit is designed to layer invisibly under standard clothing. The thin construction adds minimal bulk under outer layers.\u003c\/p\u003e","brand":"Authority Asset Brand","offers":[{"title":"Black \/ L","offer_id":48037585223924,"sku":"14:366103;5:3095#L","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ XL","offer_id":48037585256692,"sku":"14:366103;5:100014065","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ S","offer_id":48037585289460,"sku":"14:366103;5:100014064","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ M","offer_id":48037585322228,"sku":"14:366103;5:361386","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Gray \/ XXL","offer_id":48037585354996,"sku":"14:201336231;5:4182","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Gray \/ XXXL","offer_id":48037585387764,"sku":"14:201336231;5:4183","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Gray \/ L","offer_id":48037585420532,"sku":"14:201336231;5:3095#L","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Gray \/ XL","offer_id":48037585453300,"sku":"14:201336231;5:100014065","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Gray \/ S","offer_id":48037585486068,"sku":"14:201336231;5:100014064","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Gray \/ M","offer_id":48037585518836,"sku":"14:201336231;5:361386","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ XXL","offer_id":48037585551604,"sku":"14:366103;5:4182","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Black \/ XXXL","offer_id":48037585584372,"sku":"14:366103;5:4183","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Navy Blue \/ XXL","offer_id":48037585617140,"sku":"14:1063;5:4182","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Navy Blue \/ XXXL","offer_id":48037585649908,"sku":"14:1063;5:4183","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Navy Blue \/ L","offer_id":48037585682676,"sku":"14:1063;5:3095#L","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Navy Blue \/ XL","offer_id":48037585715444,"sku":"14:1063;5:100014065","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Navy Blue \/ S","offer_id":48037585748212,"sku":"14:1063;5:100014064","price":29.99,"currency_code":"USD","in_stock":true},{"title":"Navy Blue \/ M","offer_id":48037585780980,"sku":"14:1063;5:361386","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0823\/0564\/6836\/files\/S951bba9a726e48a1962755ca10f2de54o.webp?v=1776955659","url":"https:\/\/authorityassetbrand.com\/products\/men-undershirts-mens-winter-thermal-underwear-thin-fleece-elastic-compression-fitness-for-winter-sports-first-layer-wear","provider":"Authority Asset Brand","version":"1.0","type":"link"}