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Cold Weather Long Underwear

Explore cold weather long underwear, with base layer styles to round out your cold-weather wardrobe. Check individual product details for fit, sizing and care information to help you choose the right long underwear for you.

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Men's Two-Layer Union Suit
L.L.Bean Men's Two-Layer Union Suit
A gray wool-blend union suit with supersoft two-layer warmth, flatlock seams, and a roomy, flexible fit.
(541)
$99.95 $99.95
SALE
What customers like:
Functional
Fits well
Well-made
Warmth
Comfortable
$99.95 $99.95
SALE
Men's Double-Layer Underwear, Pants
L.L.Bean Men's Double-Layer Underwear, Pants
Blue men's thermal underwear pants with a durable wool-blend outer layer and soft cotton lining.
(392)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Kids' Wicked Warm Midweight Long Underwear, Pants Print
L.L.Bean Kids' Wicked Warm Midweight Long Underwear, Pants Print
A midweight kids' long underwear pant in printed polyester, designed to retain heat and wick moisture.
(84)
$29.95 $24.99
SALE
$29.95 $24.99
SALE
Men's Double-Layer Underwear, Crewneck
L.L.Bean Men's Double-Layer Underwear, Crewneck
A blue men's thermal crewneck with a two-layer wool-blend/nylon exterior, soft cotton lining, and flatlock seams.
(376)
$54.95 $54.95
SALE
What customers like:
Perfect fit
Exceptional warmth
High comfort
Well made
Soft feel
$54.95 $54.95
SALE
Kids' Wicked Warm Long Underwear, Expedition-Weight Pants
L.L.Bean Kids' Wicked Warm Long Underwear, Expedition-Weight Pants
Expedition-weight base-layer pants in blue synthetic fabric with brushed fleece warmth, moisture-wicking performance, and four-way stretch.
(81)
$32.95 $32.95
SALE
What customers like:
Lightweight
No annoying seams
True to size
Warm
Super soft
$32.95 $32.95
SALE
Kids' Wicked Warm Midweight Long Underwear, Top Print
L.L.Bean Kids' Wicked Warm Midweight Long Underwear, Top Print
A kids’ midweight polyester base-layer top with a colorful print, thumbhole cuffs and toasty warmth.
(83)
$29.95 $29.95
SALE
$29.95 $29.95
SALE
Toddlers' Wicked Warm Midweight Underwear Set, Print
L.L.Bean Toddlers' Wicked Warm Midweight Underwear Set, Print
A printed polyester toddler long-underwear set with midweight warmth and moisture-wicking comfort for cold-weather layering.
(59)
$44.95 $44.95
SALE
What customers like:
Comfortable for kids
Fun rainbow dot pattern
Provides excellent warmth
Durable material
Adjustable cuffs for better fit
$44.95 $44.95
SALE
Kids' Wicked Warm Midweight Long Underwear, Top
L.L.Bean Kids' Wicked Warm Midweight Long Underwear, Top
A blue midweight base-layer top in polyester, with moisture-wicking warmth and thumbhole cuffs for cold-weather comfort.
(0)
$24.95 $24.95
SALE
$24.95 $24.95
SALE
Kids' Wicked Warm Long Underwear, Expedition-Weight Print Pants
L.L.Bean Kids' Wicked Warm Long Underwear, Expedition-Weight Print Pants
A pair of warm kids’ base-layer pants in blue, printed polyester-spandex, fleece-lined, moisture-wicking, and quick-drying.
(0)
$39.95 $39.95
SALE
$39.95 $39.95
SALE
Women's Silk Underwear, Scoopneck
L.L.Bean Women's Silk Underwear, Scoopneck
A black silk long-sleeve undershirt offering comfortable warmth without bulk, perfect as a first layer.
(639)
$54.95 $45.99
SALE
What customers like:
Great fit
Lightweight
Warmth
Silky feel
Comfortable
$54.95 $45.99
SALE
Kids' Wicked Warm Midweight Long Underwear, Pants
L.L.Bean Kids' Wicked Warm Midweight Long Underwear, Pants
A blue polyester base-layer pant with midweight warmth, moisture-wicking comfort, covered elastic waistband and stay-put cuffs.
(0)
$24.95 $24.95
SALE
$24.95 $24.95
SALE
Women's Cresta Ultralight 150 Crew Top, Stripe
L.L.Bean Women's Cresta Ultralight 150 Crew Top, Stripe
A striped base-layer crew top in itch-free 100% merino wool with moisture-wicking warmth and thumbhole cuffs.
(67)
$89.95 $75.99
SALE
What customers like:
Ideal as long underwear
Provides excellent warmth
Soft merino wool material
$89.95 $75.99
SALE
Kids' Wicked Warm Long Underwear, Expedition-Weight Top
L.L.Bean Kids' Wicked Warm Long Underwear, Expedition-Weight Top
A blue kids’ expedition-weight base-layer top in moisture-wicking polyester-Lycra, fleece-lined for exceptional warmth.
(79)
$39.95 $39.95
SALE
What customers like:
Fits well
Moisture-wicking
Daughter likes jacket
Warm
Comfortable
$39.95 $39.95
SALE
Men's L.L.Bean Heavyweight Base Layer Pant
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Pant
A black heavyweight base-layer pant with recycled polyester, moisture-wicking, quick-drying fabric and odor-control finish.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Men's L.L.Bean Synthetic Silk Base Layer Pants
L.L.Bean Men's L.L.Bean Synthetic Silk Base Layer Pants
A lightweight brown synthetic-polyester base layer with a smooth, close-fitting design for warmth without bulk.
(0)
$44.95 $44.95
SALE
$44.95 $44.95
SALE
Women's L.L.Bean Heavyweight Base Layer Pants
L.L.Bean Women's L.L.Bean Heavyweight Base Layer Pants
A black synthetic base-layer pant with moisture-wicking, quick-drying fabric, odor control, and a warm wide waistband.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Little Kids' Wicked Warm Long Underwear, Expedition-Weight Print Top
L.L.Bean Little Kids' Wicked Warm Long Underwear, Expedition-Weight Print Top
A blue kids’ expedition-weight base-layer top in moisture-wicking polyester-spandex with lightweight fleece lining and four-way stretch.
(0)
$44.95 $44.95
SALE
$44.95 $44.95
SALE
Women's L.L.Bean Synthetic Silk Base Layer Pants
L.L.Bean Women's L.L.Bean Synthetic Silk Base Layer Pants
A lightweight white synthetic-polyester base layer for smooth, bulk-free warmth beneath clothing.
(0)
$44.95 $44.95
SALE
$44.95 $44.95
SALE
Men's L.L.Bean Midweight Base Layer Crew Top, 1/4 Zip
L.L.Bean Men's L.L.Bean Midweight Base Layer Crew Top, 1/4 Zip
A green midweight synthetic base layer top with moisture-wicking, quick-drying fabric, odor-resistant finish and thumbhole cuffs.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Women's L.L.Bean Heayweight Base Layer Pant, Print
L.L.Bean Women's L.L.Bean Heayweight Base Layer Pant, Print
A blue heavyweight synthetic base-layer pant with moisture-wicking, quick-drying fabric and a tapered ski-boot-friendly fit.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Women's L.L.Bean Midweight Base Layer Pants
L.L.Bean Women's L.L.Bean Midweight Base Layer Pants
A black synthetic base-layer pant with moisture-wicking, quick-drying stretch fabric and odor-resistant antimicrobial finish.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Men's L.L.Bean Midweight Base Layer Pants
L.L.Bean Men's L.L.Bean Midweight Base Layer Pants
Blue synthetic base-layer pants with moisture-wicking, quick-drying fabric, odor resistance and flexible recycled-polyester stretch.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Men's Silk Underwear, Pants
L.L.Bean Men's Silk Underwear, Pants
A strong, lightweight black silk base layer offering warmth and comfort without added bulk.
(486)
$54.95 $39.99
SALE
What customers like:
Great fit
Quality
Warmth
Comfortable
Versatile for weather
$54.95 $39.99
SALE
Women's Silk Underwear, Turtleneck
L.L.Bean Women's Silk Underwear, Turtleneck
A lightweight black silk turtleneck base layer offering breathable warmth without added bulk.
(424)
$69.95 $58.99
SALE
What customers like:
Excellent customer service
Comfortable thinness
Great turtleneck fit
Lightweight and warm
Perfect for layering
$69.95 $58.99
SALE

Cold Weather Long Underwear

Cold weather long underwear is a starting point for a considered cold-weather wardrobe, bringing attention to the layers worn beneath the clothes everyone sees. Those first layers deserve the same thought as a favorite pair of pants or a well-chosen outer layer, especially during the cooler months when getting dressed involves a few more decisions. The appeal is straightforward: familiar essentials, a fit that feels right, and choices that make sense alongside clothing already in the closet. Long underwear is a personal purchase, shaped as much by individual preferences as by the forecast. Some people like the consistency of coordinating upper and lower layers, while others prefer to choose each separately according to their proportions and the way their everyday clothes fit. Neither approach needs to be complicated. A useful starting point is the relationship between the long underwear and whatever goes over it, including the position of a neckline, the length of a sleeve, and where a waistband sits. These small details can matter more in daily dressing than an elaborate list of features. A neckline that stays where expected beneath a shirt or a hem that falls at a preferred point can help a purchase feel like part of an established wardrobe rather than something that requires rethinking it. Personal style has a place here, too, even when a layer is mostly out of sight. A simple, understated look can make these essentials feel familiar from the first wear, while coordinating choices can bring a little order to a drawer of cold-weather clothing. This collection puts the focus on cold weather long underwear as an everyday wardrobe consideration, with room for different preferences rather than a single answer for everyone. The goal is a selection that feels thoughtfully chosen, not a collection of features that sound impressive but have little connection to how someone likes to dress.

Fit is often the clearest way to narrow that selection, because a size label alone cannot describe how a garment will sit on a particular person. Measurements and individual fit descriptions give more useful context, particularly when upper and lower body proportions call for different sizes. Shoulder placement, sleeve length, torso length, waist measurements, and inseam all contribute to the overall fit. Long underwear also has to be considered in relation to other clothing: the waistband of the pants worn over it, for example, or the cuff of a familiar long-sleeve shirt. Thinking about those points of overlap makes comparison more concrete without assuming that every style is cut alike. Someone who regularly finds sleeves too short may place length near the top of the list, while someone between sizes may want to look more closely at the stated measurements before choosing. Fabric preferences deserve a similarly individual approach. The composition listed in each garment’s details is the place to confirm what it is made from, rather than relying on a category name or a photograph. A familiar fabric description can provide a useful point of comparison with clothing already owned, but it should not stand in for the complete details of a different garment. Construction is worth examining at the same time. The placement of seams, the shape of openings, and the finish at cuffs and hems help describe what a particular choice will be like to wear. These are not details that have one universally correct answer; they are ways to recognize preferences that might otherwise be difficult to put into words. The broader selection of cold weather undergarments offers another place to consider related wardrobe essentials alongside long underwear. Keeping the focus on fit, clearly described construction, and personal preferences makes it easier to compare choices on their own terms, without expecting a single garment to suit every person or every cold-weather wardrobe.

Care and long-term ownership belong in the decision as well, especially for clothing that may become part of a regular rotation during the cooler months. The care instructions attached to each garment should guide washing, drying, and any other treatment; similar-looking long underwear does not necessarily call for the same routine. Before choosing, it helps to consider whether those instructions fit the way laundry is handled at home. A household that sorts clothing carefully may approach that decision differently from one where most laundry follows a single routine. Neither habit changes the label’s directions, but recognizing the difference can prevent a purchase from becoming an awkward exception. Durability deserves attention without being reduced to a promise about how many seasons something will last. Materials, construction, frequency of wear, and care all belong in that conversation, and the details of an individual garment are more informative than broad claims about an entire category. Keeping track of what has worked well in an existing wardrobe can be useful: a preferred waistband shape, a sleeve length that feels right, or care instructions that are easy to follow consistently. Those observations also help when replacing a familiar layer or adding another to a regular rotation. As a gift, cold weather long underwear is best approached with that same personal knowledge. It can be a thoughtful choice for someone whose size, fit preferences, and cold-weather clothing habits are already familiar, rather than a purchase based on guesswork. Knowing whether a recipient prefers coordinating layers or chooses upper and lower pieces independently can make the selection feel more considered. There is something satisfying about practical clothing chosen with close attention to the person who will wear it. Whether selected for someone else or for a personal wardrobe, these essentials invite a measured approach: compare the details, respect individual preferences, and choose with the rest of the closet in mind. As cooler weather becomes part of the daily forecast, a thoughtfully arranged drawer of long underwear can be one small, welcome part of getting dressed.
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