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  1. L.L.Bean/Active Base Layers
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Active Base Layers

Gear up for your next adventure with our versatile active base layers, designed to keep you comfortable and ready for anything. Whether you're hitting the trails or enjoying a casual day outdoors, these essential wardrobe staples provide the perfect foundation for layering. With a focus on quality and durability, our active base layers offer lasting value and timeless style, ensuring that you stay warm and cozy in any setting. Embrace the outdoors with confidence, knowing that your base layers are built to perform and enhance your experience every step of the way.

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  • Men's Cresta Wool Midweight 250 Crew Top
    Men's Cresta Wool Midweight 250 Crew Top
    Price was from: $99.95 now: $84.99 $99.95 $84.99

    A versatile merino wool base layer that wicks sweat, resists odor, and features thumbhole cuffs.

    Pros: Great fit Comfortable feel Durable material Soft fabric Excellent warmth

  • Men's Silk Underwear, Pants
    Men's Silk Underwear, Pants
    $54.95

    A strong, lightweight black silk base layer offering warmth and comfort without added bulk.

    Pros: Great fit Quality Warmth Comfortable Versatile for weather

  • Women's Cresta Midweight 250 Pants, High-Rise Slim-Leg
    Women's Cresta Midweight 250 Pants, High-Rise Slim-Leg
    Price was from: $99.95 now: $84.99 $99.95 $84.99

    An eggplant heather, high-rise slim-leg base layer made of 100% merino wool for warmth and comfort.

    Pros: Great fit Perfect base layer Warm and cozy Comfortable fabric Non-itchy material

  • Men's Cresta Midweight 250 Quarter-Zip Top
    Men's Cresta Midweight 250 Quarter-Zip Top
    Price was from: $120 now: $99.99 $120 $99.99

    A versatile midweight merino wool base layer in saddle heather, featuring a quarter-zip and thumbhole cuffs.

    Pros: Convenience Keeps you warm Comfort Durability Versatility

  • Women's Cresta Midweight 250 Crew Top
    Women's Cresta Midweight 250 Crew Top
    $99.95

    A dark black, form-fitting merino wool crew top that wicks sweat, resists odor, and keeps you warm.

    Pros: Great fit Breathable fabric High quality Perfect base layer Excellent warmth

  • Women's Cresta Midweight 250 T-Zip Top
    Women's Cresta Midweight 250 T-Zip Top
    Price was from: $120 now: $99.99 $120 $99.99

    An eggplant heather merino wool base layer that wicks sweat, resists odor, and keeps you warm.

    Pros: Good quality Warmth True to size Versatile Comfortable

  • Men's Cresta Ultralight 150 Crew Top
    Men's Cresta Ultralight 150 Crew Top
    $89.95

    An alloy gray, 100% merino wool crew top offering lightweight warmth and comfort for all-season activities.

    Pros: Soft material Warmth Good fit Comfortable Versatility

  • Women's Cresta Ultralight 150 Crew Top
    Women's Cresta Ultralight 150 Crew Top
    $89.95

    An alloy gray, form-fitting base layer made of 100% merino wool, perfect for any season.

    Pros: Not itchy Lightweight Versatile Comfortable Warm

  • Men's Cresta Wool Ultralight 150 Pants
    Men's Cresta Wool Ultralight 150 Pants
    $89.95

    An ultralight base layer made of 100% merino wool, perfect for cool-weather sports and odor-resistant.

    Pros: Lightweight Warm without being bulky Stylish Durable Comfortable

  • Women's L.L.Bean Simple Soft Base Layer, Crew
    Women's L.L.Bean Simple Soft Base Layer, Crew
    $54.95

    A lightweight, moisture-wicking synthetic base layer with thumbholes, perfect for everyday warmth and easy layering.

    Pros: Great fit Smooth fabric Softness Dino style Material

  • Women's Cresta Ultralight 150 Pants, High-Rise Slim-Leg
    Women's Cresta Ultralight 150 Pants, High-Rise Slim-Leg
    $89.95

    A high-rise, slim-leg base layer made from itch-free 100% merino wool in alloy gray.

  • Women's L.L.Bean Simple Soft Base Layer, Pants
    Women's L.L.Bean Simple Soft Base Layer, Pants
    $54.95

    A lightweight, moisture-wicking synthetic base layer pant in dark black, perfect for everyday warmth and layering.

    Pros: Adds extra warmth Lightweight Very soft Good fit Comfortable

  • Women's Cresta Wool Ultralight 150 Base Layer, Hoodie
    Women's Cresta Wool Ultralight 150 Base Layer, Hoodie
    Price was from: $99.95 now: $84.99 $99.95 $84.99

    An ultralight, alloy gray Merino wool hoodie that wicks moisture, resists odors, and fits comfortably under helmets.

    Pros: High-quality material Easy to care for Perfect under layer Lightweight design Comfortable fit

  • Men's L.L.Bean Simple Soft Base Layer, Pants
    Men's L.L.Bean Simple Soft Base Layer, Pants
    $54.95

    A lightweight, moisture-wicking synthetic base layer pant in faded sage heather, perfect for everyday warmth.

    Pros: Great for layering Provides warmth Lightweight feel

  • Men's Cresta Wool Ultralight 150 Base Layer, Hoodie
    Men's Cresta Wool Ultralight 150 Base Layer, Hoodie
    $99.95

    An alloy gray, 100% Merino wool hoodie base layer that wicks moisture, resists odors, and fits snugly.

    Pros: Soft and fleecy interior Ideal for winter sports Warm and comfortable Good fit Fashionable and supportive

  • Men's Cresta Ultralight 150 Crew Top, Stripe
    Men's Cresta Ultralight 150 Crew Top, Stripe
    Price was from: $89.95 now: $75.99 $89.95 $75.99

    A remarkably soft and warm striped crew top made of 100% merino wool with thumbhole cuffs.

  • Women's Cresta Ultralight 150 Crew Top, Stripe
    Women's Cresta Ultralight 150 Crew Top, Stripe
    Price was from: $89.95 now: $75.99 $89.95 $75.99

    An itch-free 100% merino wool base layer that wicks moisture, resists odors, and features thumbhole cuffs.

    Pros: Provides good warmth Works well as long underwear Soft merino wool material

  • Women's Cresta Ultralight 150 Pants, High-Rise Slim-Leg Stripe
    Women's Cresta Ultralight 150 Pants, High-Rise Slim-Leg Stripe
    Price was from: $89.95 now: $75.99 $89.95 $75.99

    A high-rise, slim-leg base layer made of soft, itch-free 100% merino wool in ocean waves or storm teal.

  • Women's Cresta Ultralight 150 Turtleneck, Stripe
    Women's Cresta Ultralight 150 Turtleneck, Stripe
    Price was from: $99.95 now: $84.99 $99.95 $84.99

    An itch-free 100% merino wool turtleneck that wicks moisture, resists odors, and features thumbhole cuffs.

  • Men's Cresta Ultralight 150 Turtleneck, Stripe
    Men's Cresta Ultralight 150 Turtleneck, Stripe
    Price was from: $99.95 now: $84.99 $99.95 $84.99

    A lightweight, itch-free 100% merino wool turtleneck in regatta blue, perfect as a base layer for winter sports.

  • Women's Cresta Ultralight 150 Hoodie, Stripe
    Women's Cresta Ultralight 150 Hoodie, Stripe
    Price was from: $99.95 now: $84.99 $99.95 $84.99

    An itch-free 100% merino wool hoodie that wicks moisture, resists odors, and fits comfortably under helmets.

  • Women's L.L.Bean Heavyweight Base Layer Pants
    Women's L.L.Bean Heavyweight Base Layer Pants
    $64.95

    A versatile, moisture-wicking, and quick-drying base layer with a high-rise fit, made from recycled polyester.

  • Men's L.L.Bean Heavyweight Base Layer Crew Top
    Men's L.L.Bean Heavyweight Base Layer Crew Top
    $64.95

    A heavyweight, moisture-wicking base layer with recycled polyester, thumb holes, and anti-microbial finish in midnight black.

  • Men's L.L.Bean Midweight Base Layer Crew Top
    Men's L.L.Bean Midweight Base Layer Crew Top
    $54.95

    A midweight, moisture-wicking crew top made from recycled polyester, offering warmth and odor resistance in midnight black.

This product is not available

Check out the following recommendations.

Active Base Layers

Active base layers are the unsung heroes of any outdoor wardrobe, serving as the foundation for comfort and performance whether you’re heading out for a sunrise run, a family hike, or a long bike ride through rolling country roads. Designed to work like a “second skin,” these versatile pieces help manage moisture and regulate your core temperature, keeping you dry and comfortable as you move from one adventure to the next. The right base layer can make all the difference on days when the weather is unpredictable, or when your plans take you from cool, shaded forests into sun-warmed meadows. Many outdoor enthusiasts rely on llbean base layers for their ability to wick away sweat, reduce chafing, and provide just the right amount of coverage—features that matter whether you’re chasing a personal best or simply savoring a quiet moment outside with family. These layers aren’t just for athletes, either. They’re a thoughtful gift for anyone who loves to stay active, from weekend campers and dog walkers to kids heading off to summer camp or college students gearing up for a semester of outdoor recreation. The best part? Base layers offer year-round utility, adapting easily to changing conditions as the weather shifts from the crisp mornings of early summer to the milder days of fall.

When choosing active base layers, it’s important to consider the unique needs of your activity and environment. Lightweight fabrics are ideal for high-output pursuits in warmer weather, offering breathability and quick-drying comfort that’s perfect for trail runs, paddling trips, or spirited games of backyard tag. For those who venture out in variable climates or enjoy early morning starts, midweight options provide extra versatility—layering smoothly under a light jacket or fleece without adding bulk. Material matters, too. Synthetic fibers like polyester and nylon are prized for their ability to manage sweat during stop-and-go activities, while natural fibers such as Merino wool excel at regulating body temperature and resisting odors, making them a favorite for multi-day hikes or travel. Fit is another key factor; a close, athletic cut ensures moisture is drawn away from the skin, while still allowing for the freedom of movement needed to scramble over rocks, set up camp, or play catch in the park. Many families appreciate the durability and easy care of llbean base layers, which hold up to repeat washings and the rigors of everyday adventure. And as your calendar fills with summer plans—be it a weekend at the lake, an impromptu road trip, or evenings spent around the fire pit—having a reliable base layer on hand helps you stay comfortable no matter where the day leads.

For those looking to refresh their warm-weather gear, there’s a dedicated resource for lighter, season-appropriate options. Explore our curated selection of Summer Base Layers for more ideas on how to stay cool, dry, and ready for anything as the days grow longer. Whether you’re shopping for yourself, outfitting your family, or searching for a practical gift for an outdoor-loving friend, investing in quality base layers is a smart way to ensure every outdoor moment is as comfortable and enjoyable as possible. From backyard barbecues to mountain trails, these foundational pieces are made for the shared joy of the outdoors—helping you make the most of every season, every adventure, and every memory in the making.

Popular Items

Women's Silk Pointelle, Long-Sleeve Scoopneck
Women's Silk Pointelle, Long-Sleeve Scoopneck
$69.95
Women's Silk Pointelle, Pants
Women's Silk Pointelle, Pants
$69.95
Women's Silk Underwear, Scoopneck
Women's Silk Underwear, Scoopneck
$54.95
Women's Silk Underwear, Turtleneck
Women's Silk Underwear, Turtleneck
$69.95
Women's Cresta Midweight 250 Pants, High-Rise Slim-Leg
Women's Cresta Midweight 250 Pants, High-Rise Slim-Leg
$99.95
Women's Cresta Midweight 250 Crew Top
Women's Cresta Midweight 250 Crew Top
$84.99 $99.95
Women's Cresta Midweight 250 T-Zip Top
Women's Cresta Midweight 250 T-Zip Top
$99.99 $120
Women's Cresta Ultralight 150 Crew Top
Women's Cresta Ultralight 150 Crew Top
$89.95
Women's L.L.Bean Simple Soft Base Layer, Crew
Women's L.L.Bean Simple Soft Base Layer, Crew
$54.95
Women's Cresta Ultralight 150 Pants, High-Rise Slim-Leg
Women's Cresta Ultralight 150 Pants, High-Rise Slim-Leg
$89.95
Women's L.L.Bean Simple Soft Base Layer, Pants
Women's L.L.Bean Simple Soft Base Layer, Pants
$54.95
Women's Cresta Wool Ultralight 150 Base Layer, Hoodie
Women's Cresta Wool Ultralight 150 Base Layer, Hoodie
$84.99 $99.95
Women's Cresta Ultralight 150 Crew Top, Stripe
Women's Cresta Ultralight 150 Crew Top, Stripe
$75.99 $89.95
Women's Cresta Ultralight 150 Pants, High-Rise Slim-Leg Stripe
Women's Cresta Ultralight 150 Pants, High-Rise Slim-Leg Stripe
$75.99 $89.95
Women's LLB Simple Soft Base Layer Camisole
Women's LLB Simple Soft Base Layer Camisole
$39.95

FAQs

Active base layers are ideal for a variety of outdoor activities, including hiking, biking, running, camping, and everyday walks. They’re also great for layering under clothing during outdoor events, yard work, or any situation where you want to stay comfortable and dry as temperatures fluctuate.

Base layers are designed to wick moisture away from your skin, helping to keep you dry and comfortable. Their lightweight yet insulating fabrics trap warmth close to your body, providing a reliable buffer against the cold without causing you to overheat during physical activity.

Yes, many base layers are stylish and comfortable enough to wear on their own during milder weather or indoor activities. Their smooth fit and classic style make them a versatile choice for everything from lounging at home to running errands around town.

Absolutely. Some base layers are designed with lighter, breathable fabrics for transitional seasons like spring and fall, while others offer more warmth for colder winter conditions. Choosing the right material and weight ensures you stay comfortable throughout the year.

Base layers are a practical and appreciated gift for anyone who enjoys spending time outdoors or simply values comfort. Their versatility, durability, and timeless style make them a go-to choice for friends and family members of all ages.

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