Long Sleeve Base Layers

Long sleeve base layers are the unsung heroes of outdoor adventures, providing a foundation of comfort and warmth that truly enhances your experience. Crafted with quality materials that promise durability and lasting value, these versatile essentials are perfect for layering in cooler weather or wearing solo during milder days. Designed to be both timeless and relevant, they offer a seamless blend of style and functionality, making them a go-to choice for any outdoor enthusiast. Whether you're hiking through the woods or enjoying a casual day outside, long sleeve base layers ensure you stay cozy and comfortable throughout your journey.

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298 Items

Men's Carefree Unshrinkable Tee, Traditional Fit, Long-Sleeve

A navy blue, long-sleeve tee made of 100% cotton that resists shrinking, fading, and pilling.

Pros: Durable and well-made Variety of colors Maintains shape and color High-quality fabric Comfortable fit
Women's Pima Cotton Turtleneck, Long-Sleeve

A luxurious royal plum turtleneck made from 100% American-grown Supima® cotton, offering unmatched softness and strength.

Pros: Versatile layering piece Softness High-quality fabric Beautiful color Comfortable fit
Women's L.L.Bean Tee, Long-Sleeve Crewneck

A soft, slightly fitted long-sleeve crewneck tee made from 100% combed cotton, perfect for cooler weather.

Pros: High quality Durable fabric Warm and cozy Versatile use Comfortable fit
Men's Unshrinkable Mini-Waffle Henley, Long-Sleeve Traditional Fit

A 100% cotton indigo heather henley that resists shrinking, fading, and pilling, with a relaxed fit.

Pros: High quality True to size Versatile Comfortable Warm
Women's Silk Pointelle, Long-Sleeve Scoopneck

A weightless dark plum rose silk scoop neck that layers effortlessly with a feminine pointelle-knit design.

Pros: Lightweight fabric Soft silk material Versatile layering Beautiful color Comfortable fit
Women's Silk Underwear, Scoopneck

A cream-colored, 100% silk long-sleeve undershirt offering comfortable warmth without bulk.

Pros: Great fit Lightweight Warmth Silky feel Comfortable
Women's Everyday SunSmart® Tee, Crewneck Long-Sleeve
Price was from: $44.95 now: $37.99

A breathable blue tee with UPF 50+ protection, moisture-wicking fabric, and thumbholes for layering.

Pros: Excellent sun protection Lightweight and breathable Soft and quick-drying fabric Versatile design Comfortable fit
Men's Cresta Wool Midweight 250 Crew Top

A versatile merino wool base layer that wicks sweat, resists odor, and keeps you warm.

Pros: Durable fabric Comfort Warmth Softness Good fit
Women's Silk Underwear, Turtleneck

A lightweight, cream silk turtleneck providing breathable warmth without bulk, perfect under casual or active outfits.

Pros: Excellent customer service Thin and comfortable Soft and warm material Lightweight and warm Perfect turtleneck fit
Men's Silk Underwear, Crewneck

A lightweight, dark flint gray crewneck made from 100% silk, perfect as a warm base layer.

Pros: High fabric quality Durable material Great for travel Comfortable fit Excellent warmth
Men's Double-Layer Underwear, Crewneck
Price was from: $49.95 now: $24.99

A gray wool-blend crewneck sweatshirt featuring double-layer thermal construction for superior warmth.
Men's Cresta Midweight 250 Quarter-Zip Top

A dark black merino wool quarter-zip top that wicks sweat, resists odor, and keeps you warm.

Pros: Keeps you warm Excellent base layer Comfort Durability Versatility
Women's Cresta Midweight 250 Crew Top

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

Pros: Great fit Breathable fabric High quality Soft and comfortable Excellent warmth
Women's Cresta Midweight 250 T-Zip Top

An eggplant heather midweight merino wool top 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

An alloy gray, extra-large base layer made of 100% merino wool, offering warmth and comfort year-round.

Pros: Soft material Warmth Good fit Comfortable Versatility
Women's Cresta Ultralight 150 Crew Top

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

Pros: Not itchy Lightweight Versatile Comfortable Warm
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 Cresta Wool Ultralight 150 Base Layer, Hoodie

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 Everyday SunSmart® Tee, Long-Sleeve Hoodie Stripe
Price was from: $59.95 now: $44.99

An iron blue stripe long-sleeve hoodie tee with UPF 50+ protection and moisture-wicking fabric.

Pros: Effective sun protection Attractive look Comfortable feel Quick-drying Lightweight design
Men's Cresta Wool Ultralight 150 Base Layer, Hoodie

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
Women's Cresta Wool Ultralight 150 Turtleneck

An ultralight, form-fitting turtleneck made of 100% Merino wool, in alloy gray, with thumbhole cuffs.

Pros: Cleanliness High quality Warmth Comfortable fabric Low maintenance
Men's Cresta Ultralight 150 Crew Top, Stripe

A remarkably soft and warm striped crew top made of 100% merino wool with thumbhole cuffs.
Women's Cresta Ultralight 150 Crew Top, Stripe

An itch-free 100% merino wool base layer, perfect for cold-weather sports, available in ocean waves and storm teal.

Pros: Ideal as long underwear Provides excellent warmth Soft merino wool material
Women's Cresta Utralight 150 Crew Top, Print
Price was from: $79 now: $34.99

A lightweight, form-fitting merino wool crew top in sea salt camo, perfect for any season.

Long Sleeve Base Layers

When you’re gearing up for cool-weather adventures, long sleeve base layers are a true essential—quietly working behind the scenes to keep you comfortable, dry and ready for whatever the day brings. Whether you’re headed out for a brisk morning hike, layering up for a weekend of camping, or simply enjoying a walk with your dog as the leaves start to turn, a quality base layer makes all the difference. As summer gives way to the first hints of fall, it’s the perfect time to think about those versatile layers that bridge the gap between seasons. Long sleeve base layers are designed for adaptability: they offer reliable warmth without bulk, wick away moisture as you move, and fit easily under your favorite shirts, sweaters or jackets. That means you can head out early when the air is cool, stay comfortable as the sun climbs, and keep cozy when the temperature dips again in the evening.

Choosing the right long sleeve base layer comes down to a few key considerations. Material is at the heart of it—look for soft, breathable fabrics that feel good against your skin and won’t chafe, even after hours of wear. Many people appreciate technical blends that combine the warmth of natural fibers with the performance of modern synthetics, ensuring you stay dry and comfortable whether you’re working up a sweat or just taking it easy around the campfire. Fit and versatility matter too; a well-designed base layer should move with you, never bunching or restricting, so you can focus on the trail ahead or the task at hand. These layers aren’t just for outdoor enthusiasts, either. They’re a smart choice for anyone who spends time outside in shifting weather, from students at the bus stop to parents cheering on the sidelines, commuters braving chilly mornings, or travelers looking to pack light and layer up as needed. And because long sleeve base layers are so practical and universally useful, they make a thoughtful gift for anyone who enjoys spending time outdoors—perfect for birthdays, holidays, or just because.

Long sleeve base layers also offer lasting value season after season. They’re easy to care for and built to handle repeated washes and wears, so you can count on them year after year. Their timeless style means they never go out of season, and their versatility ensures they’ll find a place in every wardrobe—whether you’re layering up for a day on the slopes, a late-summer camping trip, or simply staying cozy at home. For those days when you need something even lighter, be sure to explore our Lightweight Base Layers for added options that keep you comfortable in milder weather. However you spend your time outdoors, having the right base layer is a small investment that pays off in comfort, confidence and the freedom to enjoy every moment outside.