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Polyester Long Underwear

Shop polyester long underwear and compare base layer styles to find your preferred fit. Check each item’s fabric composition, sizing and care instructions to help narrow your choice.

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Women's L.L.Bean Simple Soft Base Layer, Crew
L.L.Bean Women's L.L.Bean Simple Soft Base Layer, Crew
A lightweight, moisture-wicking black base layer crewneck made from 94% polyester and 6% spandex.
(127)
$54.95 $54.95
SALE
What customers like:
Great fit
Smooth fabric
Softness
Dino style
Material
$54.95 $54.95
SALE
Women's L.L.Bean Simple Soft Base Layer, Pants
L.L.Bean Women's L.L.Bean Simple Soft Base Layer, Pants
A lightweight, moisture-wicking synthetic base layer pant in dark black, perfect for everyday warmth and comfort.
(116)
$54.95 $54.95
SALE
What customers like:
Adds extra warmth
Lightweight
Softness
Good fit
Comfortable
$54.95 $54.95
SALE
Men's L.L.Bean Simple Soft Base Layer, Pants
L.L.Bean Men's L.L.Bean Simple Soft Base Layer, Pants
A lightweight, moisture-wicking base layer pant in dark black heather, made from a polyester-spandex blend.
(86)
$54.95 $54.95
SALE
What customers like:
Ideal for layering
Provides warmth
Lightweight feel
$54.95 $54.95
SALE
Men's L.L.Bean Heavyweight Base Layer Crew Top, Print
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Crew Top, Print
A heavyweight, moisture-wicking, and quick-drying base layer with anti-microbial finish in kelp green camo.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Men's L.L.Bean Heavyweight Base Layer Pant, Print
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Pant, Print
A heavyweight base layer pant in kelp green camo, made from recycled polyester for warmth and moisture-wicking.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Men's L.L.Bean Heavyweight Base Layer Crew Top
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Crew Top
A heavyweight base layer crew top in midnight black, made from recycled polyester with moisture-wicking properties.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Women's L.L.Bean Heavyweight Base Layer Crew Top
L.L.Bean Women's L.L.Bean Heavyweight Base Layer Crew Top
A midnight black heavyweight base layer top made from recycled polyester, designed to keep you warm and dry.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Women's L.L.Bean Heavyweight Base Layer Pants
L.L.Bean Women's L.L.Bean Heavyweight Base Layer Pants
A versatile, midnight black heavyweight base layer with moisture-wicking, quick-drying, and odor-controlling properties.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Kids' Wicked Warm Midweight Long Underwear, Pants
L.L.Bean Kids' Wicked Warm Midweight Long Underwear, Pants
A pair of black midweight synthetic long underwear pants that keep kids warm and dry during winter.
(0)
$24.95 $24.95
SALE
$24.95 $24.95
SALE
Men's L.L.Bean Simple Soft Base Layer, Crew
L.L.Bean Men's L.L.Bean Simple Soft Base Layer, Crew
A lightweight, dark black heather crewneck base layer made from moisture-wicking, quick-drying synthetic fabric.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Men's L.L.Bean Heavyweight Base Layer Pant
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Pant
A heavyweight base layer pant in midnight black, made from recycled polyester with moisture-wicking properties.
(0)
$64.95 $64.95
SALE
$64.95 $64.95
SALE
Men's L.L.Bean Heavyweight Baselayer Hoodie
L.L.Bean Men's L.L.Bean Heavyweight Baselayer Hoodie
A midnight black heavyweight baselayer hoodie made from recycled polyester blend, featuring moisture-wicking and anti-microbial properties.
(0)
$79.95 $79.95
SALE
$79.95 $79.95
SALE
Men's L.L.Bean Midweight Base Layer Pants
L.L.Bean Men's L.L.Bean Midweight Base Layer Pants
A versatile, moisture-wicking base layer made from recycled polyester, offering warmth and comfort in carbon navy.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Men's L.L.Bean Heavyweight Base Layer Hoodie, Print
L.L.Bean Men's L.L.Bean Heavyweight Base Layer Hoodie, Print
A heavyweight base layer hoodie in kelp green camo, made from recycled polyester, wicks moisture and controls odor.
(0)
$79.95 $79.95
SALE
$79.95 $79.95
SALE
Women's L.L.Bean Midweight Base Layer Crew Top
L.L.Bean Women's L.L.Bean Midweight Base Layer Crew Top
A versatile midweight base layer with REPREVE® recycled polyester, offering warmth, moisture-wicking, and odor resistance.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Kids' Wicked Warm Midweight Long Underwear, Top
L.L.Bean Kids' Wicked Warm Midweight Long Underwear, Top
A midweight, black polyester top that keeps kids warm and dry with thumbhole cuffs for added protection.
(0)
$24.95 $24.95
SALE
$24.95 $24.95
SALE
Men's L.L.Bean Midweight Base Layer Crew Top
L.L.Bean Men's L.L.Bean Midweight Base Layer Crew Top
A midweight, pinewood green base layer top made from recycled polyester, designed for warmth and moisture-wicking.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
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 versatile midweight base layer with REPREVE® recycled polyester, featuring thumb holes and anti-microbial finish.
(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 versatile midweight base layer with moisture-wicking, quick-dry fabric made from recycled polyester in lavender ice.
(0)
$54.95 $54.95
SALE
$54.95 $54.95
SALE
Women's PrimaLoft ThermaStretch Fleece Tights, Mid-Rise
L.L.Bean Women's PrimaLoft ThermaStretch Fleece Tights, Mid-Rise
A pair of mid-rise fleece/nylon tights in fig, featuring moisture-wicking and odor control for ultimate comfort.
(1,413)
$110 $43.99
SALE
What customers like:
Great fit
Quality
Warmth
Softness
Comfortable
$110 $43.99
SALE
Kids' Wicked Warm Long Underwear, Expedition-Weight Pants
L.L.Bean Kids' Wicked Warm Long Underwear, Expedition-Weight Pants
A moisture-wicking, quick-drying base layer with four-way stretch and brushed fleece lining for ultimate warmth.
(81)
$32.95 $32.95
SALE
What customers like:
Lightweight
No annoying seams
True to size
Cozy
Super soft
$32.95 $32.95
SALE
Men's Mountainside Micro Waffle Crew
L.L.Bean Men's Mountainside Micro Waffle Crew
A gray crewneck made from a soft, quick-drying recycled polyester blend with durable waffle texture.
(0)
$59.95 $50.99
SALE
$59.95 $50.99
SALE
Women's LLB Simple Soft Base Layer Camisole
L.L.Bean Women's LLB Simple Soft Base Layer Camisole
A lightweight pink camisole in a soft, moisture-wicking synthetic blend for comfortable everyday layering.
(0)
$39.95 $39.95
SALE
$39.95 $39.95
SALE
Women's Mountainside Micro Waffle Henley
L.L.Bean Women's Mountainside Micro Waffle Henley
A soft, white waffle henley made from a recycled polyester blend that's quick-drying, stretchy, and durable.
(0)
$69.95 $69.95
SALE
$69.95 $69.95
SALE

Polyester Long Underwear

Polyester Long Underwear is a good place to begin when you’re looking to round out the essentials in your wardrobe. Finding the right pieces starts with the details you notice when getting dressed: the neckline you prefer, where a waistband sits and whether sleeves and legs fall at the length you like. Think about the clothes you already own and the shapes you tend to reach for, rather than choosing by size alone. A familiar size label is a starting point, but measurements and fit descriptions offer a clearer picture of how an individual piece is cut. Compare chest, waist and hip measurements with the size chart, and check any available information about sleeve length and inseam. Those small checks can help you make a more thoughtful choice, especially if it has been a while since you last bought long underwear.

When comparing polyester long underwear, look beyond the photograph and spend a little time with each item’s description. The title identifies the material, while the fabric details provide the full composition and polyester percentage. Read those details alongside the care instructions so you know what you’re choosing and how it fits into your laundry routine. For tops, consider whether you prefer a simple neckline or an opening you can adjust; for bottoms, pay attention to the waistband, rise and cuffs described in the listing. If you’re buying separate pieces, check the sizing for each rather than assuming the same size will be right for both. Your favorite shirt and best-fitting pants may already tell that story: proportions are personal, and a little attention to them is more useful than relying on a matching label. Let your own preferences guide the comparison.

Long underwear can also be a thoughtful, practical gift for someone whose size and style you know well. Perhaps your partner keeps a neatly folded drawer of everyday essentials, or an adult family member has mentioned replacing a few older pieces. Take your cue from what they already choose for themselves—the necklines, lengths and fit they like—rather than guessing at a different style. If you’re shopping for your own household, the same approach helps keep the purchase focused: take a quick look through the drawer, see what’s missing and decide whether you need a top, bottoms or both. Choosing Polyester Long Underwear doesn’t have to mean replacing everything at once. Start with the pieces that make sense for the person wearing them, compare the individual details and build an assortment that reflects real preferences rather than an imagined checklist.

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