{"product_id":"mens-fleece-lined-thermal-underwear-set-long-johns-top-pants","title":"Men's Fleece-Lined Thermal Long Johns Set | Top \u0026 Pants","description":"\n\u003ch2\u003eMen's Fleece-Lined Thermal Long Johns Set – Tops \u0026amp; Pants\u003c\/h2\u003e\n\u003cp\u003eStay cozy and comfortable all winter long with this 2-piece fleece-lined thermal underwear set. Designed for men who demand warmth without bulk, this knit set pairs a long-sleeve top with matching thermal pants — perfect for layering under your everyday clothing or activewear.\u003c\/p\u003e\n\n\u003cp\u003eCrafted from a soft polyester-elastane blend with a fleece interior, this thermal base layer provides excellent insulation while remaining stretchy and form-fitting. Whether you're heading outdoors for skiing, cycling, running, or simply braving a cold commute, this set keeps you well-insulated and moving freely.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e2-Piece Set:\u003c\/strong\u003e Includes both a long-sleeve thermal top and matching thermal pants\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFleece-Lined Interior:\u003c\/strong\u003e Soft, thick fleece lining traps body heat for all-day warmth\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStretchy Fabric:\u003c\/strong\u003e Polyester \u0026amp; elastane blend moves with your body for a comfortable fit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVersatile Use:\u003c\/strong\u003e Ideal for skiing, running, cycling, gym workouts, outdoor sports, and everyday layering\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSoft \u0026amp; Non-Irritating:\u003c\/strong\u003e Gentle on skin, even with extended wear\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable Sizes:\u003c\/strong\u003e S, M, L, XL, XXL, 3XL (Asian sizing — please see size guide below)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polyester, Elastane\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCraft:\u003c\/strong\u003e Knit\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGender:\u003c\/strong\u003e Men\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem Type:\u003c\/strong\u003e Thermal Long Johns Set (Top + Pants)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e HR45T\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eMade in Mainland China\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSize Guide (Asian Sizing)\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePlease note: This is Asian sizing, which typically runs approximately 2 sizes smaller than European sizing. We recommend sizing up if you are between sizes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eS:\u003c\/strong\u003e Height 150–160 cm | Weight 40–50 kg\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eM:\u003c\/strong\u003e Height 160–170 cm | Weight 50–60 kg\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eL:\u003c\/strong\u003e Height 170–175 cm | Weight 60–70 kg\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eXL:\u003c\/strong\u003e Height 175–180 cm | Weight 70–80 kg\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eXXL:\u003c\/strong\u003e Height 180–185 cm | Weight 80–90 kg\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e3XL:\u003c\/strong\u003e Height 185–190 cm | Weight 90–95 kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePlease allow 1–2 cm variance due to manual measurement. Colors may vary slightly from photos due to different display settings and lighting conditions.\u003c\/p\u003e\n\n\u003ch3\u003eGreat for Layering Under Your Favourite Styles\u003c\/h3\u003e\n\u003cp\u003eLooking to complete your cold-weather wardrobe? Check out these popular styles from our store:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/womens-high-waist-fleece-lined-slim-pencil-jeans\"\u003eWomen's High-Waist Fleece-Lined Slim Pencil Jeans\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/womens-oversized-turtleneck-cashmere-sweater-winter-pullover\"\u003eWomen's Oversized Turtleneck Cashmere Sweater – Winter Pullover\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/womens-oversized-turtleneck-knit-pullover-sweater-thick-cozy\"\u003eWomen's Oversized Turtleneck Knit Pullover Sweater – Thick \u0026amp; Cozy\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.ftc.gov\/business-guidance\/resources\/threading-your-way-through-labeling-requirements-under-textile-wool-acts\" target=\"_blank\" rel=\"noopener\"\u003eFTC textile labeling requirements\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is this thermal underwear set true to size?\u003c\/h4\u003e\n\u003cp\u003eA: This set uses Asian sizing, which typically runs about 2 sizes smaller than European or Western sizes. Please refer to the size guide above (based on height and weight) to choose the best fit. If you're unsure, feel free to contact us before ordering.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I wear this thermal long johns set for outdoor sports like skiing or running?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely! This fleece-lined thermal set is designed to be worn as a base layer for a wide range of activities including skiing, cycling, running, gym workouts, and general outdoor sports. The stretchy polyester-elastane fabric ensures freedom of movement while the fleece lining keeps you warm.\u003c\/p\u003e\n\u003ch4\u003eQ: How should I care for this thermal underwear set?\u003c\/h4\u003e\n\u003cp\u003eA: For best results, machine wash on a gentle cycle with cold water and tumble dry on low heat. Avoid bleach or strong detergents to preserve the softness of the fleece lining and elasticity of the fabric.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is this thermal underwear set true to size?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This set uses Asian sizing, which typically runs about 2 sizes smaller than European or Western sizes. 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Avoid bleach or strong detergents to preserve the softness of the fleece lining and elasticity of the fabric.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/fzefzx-nb.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Home page\", \"item\": \"https:\/\/fzefzx-nb.myshopify.com\/collections\/frontpage\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Men's Fleece-Lined Thermal Long Johns Set | Top \u0026 Pants\", \"item\": \"https:\/\/fzefzx-nb.myshopify.com\/products\/mens-fleece-lined-thermal-underwear-set-long-johns-top-pants\"}]}\u003c\/script\u003e","brand":"P3","offers":[{"title":"Sets \/ L","offer_id":67632639181169,"sku":"1005010227690588-Sets-L","price":77.61,"currency_code":"USD","in_stock":true},{"title":"Sets \/ 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