Synthetic Base Layers

Synthetic base layers are essential companions for any outdoor adventure, providing comfort and versatility in a variety of conditions. Designed to be worn close to the skin, these layers help regulate body temperature, wick away moisture, and keep you feeling fresh on your journey. Whether you're hiking through dense forests or skiing down snowy slopes, synthetic base layers offer the durability and lasting value you need to enjoy every moment outside. With a range of styles and sizes available, finding the perfect fit is simple, ensuring everyone can experience the joy of outdoor exploration with ease.

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Kids' Wicked Warm Midweight Long Underwear, Top Print
Price was from: $29.95 now: $16.99

A midweight, synthetic long underwear top in wild salmon flower power print with thumbhole cuffs for kids.

Pros: Attractive design Nice cut Affordable price Good fit
Kids' Wicked Warm Long Underwear, Expedition-Weight Balaclava Print Top
Price was from: $44.95 now: $29.99

A moisture-wicking, quick-drying kids' base layer with fleece lining, hood, and thumbholes in coal snowflake fairisle.
Men's L.L.Bean Midweight Base Layer Pants
Price was from: $49.95 now: $24.99

A blue synthetic base layer pant with moisture-wicking, quick-drying, and odor-resistant properties for all-day comfort.

Pros: Retains shape after washing High quality material Durable construction Warmth for cold conditions Comfortable fit
Women's Airlight Pullover, Funnelneck
Price was from: $79 now: $54.99

A light ocean heather polyester pullover with UPF 50+, thumbholes, and abrasion-resistant fabric for versatile comfort.

Pros: High quality Functional pockets Warmth Stylish Comfortable fit
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.

Pros: Great fit Smooth fabric Softness Dino style Material
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 layering.

Pros: Adds extra warmth Lightweight Very soft Good fit Comfortable
Men's L.L.Bean Simple Soft Base Layer, Pants

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

Pros: Great for layering Provides warmth Lightweight feel
Kids' Wicked Warm Midweight Long Underwear, Pants Print
Price was from: $29.95 now: $16.99

A pair of midweight, wild salmon flower power print long underwear pants that keep kids warm and dry.
Kids' Wicked Warm Long Underwear, Expedition-Weight Pants

A moisture-wicking, quick-drying base layer with brushed fleece lining and four-way stretch for winter sports.

Pros: No annoying seams True to size Cozy Warm Super soft
Kids' Wicked Warm Long Underwear, Expedition-Weight Top

A moisture-wicking, quick-drying kids' base layer with lightweight fleece lining and four-way stretch for easy movement.

Pros: Fits well Moisture-wicking Daughter likes jacket Warm Comfortable
Men's L.L.Bean Heavyweight Baselayer Hoodie

A midnight black hoodie made from recycled polyester blend, offering warmth, moisture-wicking, and odor control.
Men's L.L.Bean Heavyweight Base Layer Crew Top

A heavyweight, moisture-wicking base layer with recycled polyester, thumb holes, and anti-microbial finish in midnight black.
Women's L.L.Bean Midweight Base Layer Pants

A versatile lavender ice base layer pant made from recycled polyester, offering warmth, moisture-wicking, and odor resistance.
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.
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.
Women's LLB Simple Soft Base Layer Camisole

A lightweight sea salt camisole made from a moisture-wicking polyester-spandex blend for everyday layering.
Kids' Wicked Warm Midweight Long Underwear, Top

A cobalt sea midweight top that keeps kids warm and dry with 100% polyester and thumbhole cuffs.
Kids' Wicked Warm Midweight Long Underwear, Pants

A pair of cobalt sea midweight long underwear pants made from 100% polyester to keep kids warm.
Men's L.L.Bean Midweight Base Layer Crew Top

A midweight, moisture-wicking crew top made from recycled polyester with anti-odor treatment and thumb holes.
Men's L.L.Bean Midweight Base Layer Pants

A versatile, moisture-wicking base layer made from recycled polyester, designed for warmth and comfort in pinewood green.
Women's L.L.Bean Heavyweight Base Layer Hoodie

A pinewood green heavyweight base layer hoodie made from recycled polyester, featuring moisture-wicking and anti-microbial properties.
Men's L.L.Bean Simple Soft Base Layer, Crew

A lightweight, moisture-wicking synthetic base layer in faded sage heather, perfect for everyday warmth and layering.
Women's L.L.Bean Midweight Base Layer Crew Top, 1/4 Zip

A versatile midweight base layer with REPREVE® recycled polyester, offering warmth, moisture-wicking, and odor resistance.
Men's L.L.Bean Midweight Base Layer Crew Top, 1/4 Zip

A versatile midweight base layer with REPREVE® recycled polyester, offering warmth, moisture-wicking, and odor resistance.

Synthetic Base Layers

When it comes to staying comfortable and dry during outdoor adventures, synthetic base layers are a tried-and-true choice for all sorts of activities and seasons. Crafted from advanced materials like polyester and nylon, these layers are designed with a clear purpose: to pull moisture away from your skin and help it evaporate fast, so you can keep moving without feeling clammy or weighed down. Whether you're heading out for a late-summer hike, gearing up for crisp autumn trail runs, or planning cool-weather camping trips, synthetic base layers are built to handle the demands of active days outside. Their quick-drying nature makes them especially handy when you’re working up a sweat or caught in a passing shower, and their durability means they stand up to repeated wear, wash after wash—perfect for folks who spend a lot of time on the go. If you’re shopping for someone who loves to explore, these layers make a thoughtful, practical gift that will see plenty of use, from morning walks with the dog to weekend bike rides and family camping trips.

Synthetic base layers are a favorite among outdoor enthusiasts, athletes, and anyone who values comfort and reliability in their clothing. They’re a staple for layering systems, providing a versatile foundation that works well in a wide range of temperatures. Lightweight versions are ideal for late summer and early fall, when cool mornings give way to warmer afternoons and you need something that adapts as the day changes. Heavier weights come into play when the weather turns colder, offering extra insulation without sacrificing breathability. One of the biggest advantages of synthetic materials is their resilience—they’re tough enough to handle the abrasion of backpack straps, the stretch and movement of climbing or skiing, and the repeated cycles of packing and unpacking that come with travel. While synthetic base layers are engineered to manage moisture and dry quickly, it’s worth noting that they can sometimes hold onto odors after long, high-output days, even with modern treatments. Still, their balance of comfort, performance, and lasting value makes them a smart pick for anyone building a reliable outdoor wardrobe. If you’re interested in exploring more color options, including a range of blues perfect for any adventure, be sure to check out our Blue Base Layers collection for even more choices.

Choosing the right synthetic base layer comes down to matching the fabric weight and features to your activity and the season. For late summer and early fall, look for lighter fabrics that wick sweat and keep you cool during brisk morning jogs or afternoon bike rides. As the weather cools, midweight and heavyweight options add warmth without bulk, making them ideal for layering under fleeces or jackets on chilly hikes or around the campfire. Parents often appreciate synthetic base layers for kids, too—they’re easy to wash, dry quickly, and stand up to playground spills and backyard adventures. Whether you’re buying for yourself or picking out a gift for someone who loves being outside, synthetic base layers offer a reliable solution that’s ready for whatever the day brings. From the first hint of autumn through the heart of winter, these layers help keep you comfortable, dry, and focused on making the most of your time outdoors.