Limited Time SaleUS$60.00 cheaper than the new price!!
| Management number | 209250971 | Release Date | 2026/03/29 | List Price | US$40.00 | Model Number | 209250971 | ||
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★Stay Warm Without Bulk: Thin Heated Thermal Underwear Set for Men ★Beat frigid winter weather without feeling stuffed—our thin heated thermal underwear set keeps men and women toasty while staying slim, so you can layer easily under any outfit. This full set includes a long-sleeve heated shirt and heated pants, crafted with lightweight, breathable fabric that skips the bulk of thick thermals—no more feeling restricted or looking puffy under jackets, sweaters, or ski gear.★It’s perfect for America’s favorite winter activities: Wear it as men’s thin long johns for hunting or working outdoors, skiing or snowboarding, or a discrete base layer for commuting or Christmas gatherings. Even lounging at home feels better—its thin design acts as cozy heated pajamas without weighing you down, and it never bunches when you move.★Powered by 2 included 10000mAh rechargeable batteries, 24 targeted carbon fiber heating zones (shoulders, back, waist, abdomen, knees, Calf) warm your core without adding thickness. Choose 3 temperature settings with clear runtimes: RED (131°F) for extreme cold (3-4hrs), WHITE (122°F) for daily comfort (5-6hrs), BLUE (113°F) for mild chills (6-7hrs). The USB-enabled batteries even charge your phone on the go—convenience that fits in your pocket.★Machine-washable (remove batteries first) and durable for weekly use, it fits like a second skin in US sizes (S-4XL) for men’s and women’s body types. Whether you need reliable winter gear or a thoughtful Christmas gift, this thin heated thermal set proves warmth doesn’t have to mean bulk—stay cozy, slim, and ready for anything the season throws at you.
| Size | Large |
|---|---|
| Color | Black With Battery |
| Pattern | Solid |
| Fit Type | Regular |
| Brand Name | Foern |
| Neck Style | Round Neck |
| Style Name | Long Sleeve |
| Unit Count | 2 Count |
| Fabric Type | 95% Cotton, 5% Other Fibers |
| Sleeve Type | Long Sleeve |
| Material Type | Cotton |
| Collection Name | Winter |
| Number of Items | 2 |
| Apparel Closure Type | Pull On |
| Garment Size Country | United States |
| Age Range Description | Adult |
| Fit to Size Sentiment | Fits True To Size |
| Apparel Fabric Stretch | High Stretch |
| Product Care Instructions | Machine Wash |
| Sleeve Length Description | Long Sleeve |
| Apparel Fabric Weight Class | Lightweight |
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