Best Long Sleeve Mens Base Layers in 2026

OMNI-SHADE: Be safe and protected. Omni-Shade blocks UVA and UVB rays to help prevent sunburns and long-term skin damage. The tight weave construction with UV absorbent yarns block the full spectrum of harmful UV rays

OMNI-WICK: The ultimate moisture management technology for the outdoors. Omni-Wick quickly moves moisture from the skin into the fabric where it spreads across the surface to quickly evaporate—keeping you cool and your clothing dry

ADVANCED PROTECTION: The Columbia Men’s PFG Terminal Tackle Long Sleeve Shirt guards against sun damage thanks to the built-in UPF 50 material. It’s a breathable, quick wicking fabric that pulls moisture away to keep you cool and dry

Dual-layer fabric with an ultra-warm, brushed interior & a smooth, fast-drying exterior

4-way stretch construction moves better in every direction

Material wicks sweat & dries really fast

Stay comfortable all day long with our lightweight and quick-dry fabric that wicks moisture away from your skin.

Protect your skin from the sun's harmful UVA/UVB rays with our UPF 50+ fabric.

Say goodbye to chafing with our flatlock seamlines and tagless collar that increase comfort.

Rapid-dry, interlock jersey knit wicks away moisture to keep you cool

50+ upf rating for excellent uv protection

More tailored, contemporary fit

Moisture wicking fabric is quick-drying, ultra-soft & has a soft feel, keeping you comfortable through any athletic activity.

Designed for a comfortable experience. Crew-neck provides a nonrestrictive fit; Long-sleeve allows for a wider range of motion

UPF 50+ provides protection from harmful UV rays

87% Polyester, 13% Spandex. Fleece Lined. Machine Washable.

Dual-layer fabric with an ultra-warm, brushed interior & a smooth, fast-drying exterior. For all-over warmth, pair the shirts with our youth sports tights.

Moisture wicking/ Quick-Dry fabric absorbs sweat from the skin,keeping you dry and comfortable

LIGHTWEIGHT – Mens Merino Base Layer Available in: Lightweight = 165 g/m², Midweight = 230-250 g/m², Heavyweight = 320+ g/m².

SUPER SOFT & COMFORTABLE – 100% Superfine 17.5 Micron Merino Wool Mens Base Layer provides all day comfort and no itch! Designed for daily wear without rubbing, overheating, or bunching of regular cotton.

MOISTURE WICKING & ODOR RESISTANT – Merino base layer mens natural wicking and odor-resistant properties allow it to absorb moisture better than any other fabric, keeping you dry and fresh.

Stay warm with temperature-regulating wool-polyester blend

Fast dry wicks away sweat and rugged flex technology for ease of movement

Smooth flat lock seams and tagless label enhance comfort

Semi-fitted: Comfortable, body skimming fit

Duo Dry - wicks moisture, dries fast

Breathable fabric helps to keep you cool

ULTRA SOFT AND SUPER WARM: CL Convallaria mens thermal underwear set is made of 90% Polyester / 10% Spandex blend fabric with high density fleece lined, the insulation material which can lock your body heat well. The super skin-touch and ultra soft long johns for men fit snug like a second skin for minimizing heat loss and keep you warm in the cold winter.

STRONG MOISTURE WICKING(WITHOUT THE SWEATY MESS): Our fans say the unique breathable, moisture-wicking fibers on CL thermal underwear will wick away moisture to keep you dry with no sticky or clammy feeling so you can wear them all day for your work or snow adventure. The smiles on men's faces will tell you how satisfied with this thermal underwear set.

4-WAY STRETCH INSULATED UNDERWEAR: While adopting the design of the Four-way stretch, we improved the crotch and armpit according to the feedback of market customers. make the reach and squat more comfortable while retaining excellent elasticity and durability for maximum mobility. CL uses high-quality stitching for thermal leggings and long sleeve shirts to beat super-active days and many muddy adventures.And insulated design let you get rid of static trouble in dry autumn and winter.

Sun Protection: breathable face cover design for your outdoor activities which provides windproof and UPF50+ for your top,facial, neck, head for all-round protection from the sun's harmful UVA/UVB rays.

Quick Dry & Breathable: Actively wicks moisture away from the skin, keeping you dry and comfortable. Great when you're out and about, and after washing too.

The 4-Way Stretch: The 4-way stretch & non see through fabric wicks moisture away from your skin for unrestricted movement and whole day comfort.

PACKAGE INCLUDES: 1 – Men’s Merino Wool Thermal Crewneck Top in Black / X-Large | MATERIAL: 18.5 Micron, 100% Merino wool, 400g/m2 | FIT: Fitted

SUPER SOFT: 100% all natural superfine 18.5-micron Merino wool ensures comfort all day – no itch! EASY CARE: Heavyweight long sleeve crew top shirt is machine-washable and dryer-safe, so it’s ready when you are for your next adventure.

400g OF WARMTH: Our most popular 250g midweight crewnecks just got an upgrade! Take your warmth to the next level with our new 400g heavyweight crewneck tops. The perfect base or mid layer for cold to freezing conditions make these thermal tops our warmest and thickest base layers yet! COMFORTABLE & CONVENIENT: These quick-drying shirts with a UPF Rating 50+ are perfect for your next trip, whether your camping, hiking, hunting, playing sports, skiing, or partaking in any outdoors activity.

Heat Retention: When it comes to warmth and everyday wear, these mens thermal long sleeve shirt is designed specifically for you to stay protected from the cold.

Ultra Soft Fleece: Designed with a fleece lining & quality material, these ultra soft mens thermal shirt will keep you feeling comfortable throughout the day.

Moisture Wicking: Stay dry with these mens long underwear as they're made from breathable fabric that effectively wicks away moisture and perspiration.

Materials: Polyester; Wrinkle-free, Quick Dry and Soft

UPF 50+: Excellent protection from the harmful effects of the Sun's UV Radiation

Quick Dry: This men's long sleeve shirt features high performance wicking fabric that pulls moisture away from skin, breathes freely and dries quickly for active

Cool Moisture Transport System for wicking away moisture and fast drying. Available in all Sizes Regular & Tall

Exceptional for Running Jogging Soccer Working Out, Gym Time, Swimming & all other active sports

Lightweight 3.8 ounce 100% Polyester for a super ultra soft feel

Your Cold Weather Adventure: Enjoy year-round layering with the Icebreaker Merino 175 Everyday Men’s Long Sleeve Wool Shirts! This 100% wool shirt for men features a stylish crewneck, and is the perfect men’s base layer for winter activities.

Reliable Materials: Made with 100% Merino wool, these long shirts for men are ideal thermals as a wool base layer for men in cold weather. Naturally odor-resistant, this men’s hiking shirt helps regulate the temperature in all weather conditions.

Easy Layering: Perfect for skiing, snowboarding or any cold weather adventure, this Merino wool underwear for men’s layering is breathable, with a slim, stretchy fit for convenient, low-bulk layering. Plus, our Merino shirt helps manage moisture.

TSLA Thermal Shirt Series designed for cold weather.

[Materials] Mix of Polyester & Spandex fabric is excellent elasticity with enhanced range of motion.

[Fleece Lining] Thermal fleece lining designed to enhance the warmth and thermal insulation.

Soft thermal fleece interior lining helps keep you warm

Form-fitting design for enhanced performance and mobility

Quick drying moisture-wicking fabric to keep you dry and comfortable

[High-performance Baselayer for Body shaping] The fitness baselayer for men is designed with 92% Polyester and 8% spandex, which maintains its shape even after repeat washing. The athletic men’s compression set will give the protection for your skin, and joints , support your muscles well with less risk of rash, overheating or muscle fatigue in athletic activities

[Instantly Absorbing Sweat In Exercise] The sport long johns for men is made of moisture wicking and breathable fabric, which will absorb sweat and dry quickly, keep away from clammy feeling and help regulate body temperature in exercise. The gym underwear set will provide a enough comfort when you play outdoor sports and gym exercise

[Excellent Flexibility For Any Movement] The compression shirt for men is designed with four way stretch fabric for your freedom of activities, really slim and light without bound feeling, allowing you to bend, stretch, jump and run freely. It's great for running, hiking, cycling, marathon, training, playing basketball, football , baseball, volleyball.

100% polyester

imported

no closure

We strongly recommend ordering ONE SIZE LARGER than your normal size. Please remember, Compression clothing is meant to fit tight. unlike a normal shirt. Sizing is also unique

Material : 92% polyester-8% Spandex. EX-R01/R04/R09 (Crew-neck) designed for all seasons

UV Protection(UPF +50) / 4 Way Full Stretch - Excellent elasticity with enhanced range of motion

Durable Moisture Wicking Fabric: Made of 100% CPT Performance Polyester on the inside and 70/30 Polyester/Merino Wool blend on the outside; Intellifresh freshness protection keeps unpleasant odors from forming on our thermal shirt

Regular Fit Thermals for Men: These thermal shirts for men feature a tagless design with flat seams and true sizing for accurate fit

Efficient Design: This men's long underwear top has convenient stay-put cuffs and a drop tail that maintains coverage and freedom of motion when worn during various activities

Stay warm with temperature-regulating wool-polyester blend

Fast dry wicks away sweat and fights odor

Rugged flex technology for ease of movement

MULTIPURPOSE RASHGUARD FOR MEN: Our Rash Guards are perfect for Mixed Martial Arts, No-Gi Jiu-Jitsu, Grappling, Wrestling, Kick Boxing, Cross-Training, Gym, Workout and Fitness.

COMFORT and FLEXIBILITY: Hardcore Training has created this high-quality Rash Guard to offer you full flexibility, freedom, and protection during any special training. The premium fabric consists of 88% Polyester and 12% Spandex.

SECOND SKIN FEELING: Our BJJ Rash Guard is ultra-tight to a perfect fit on your body allowing you to move freely and exercise any fighting move and pose.

Moisture-Wicking Fabric: Long johns for men feature a 100% CPT Performance polyester interior and 70/30 polyester/merino wool exterior with Silvadur Intelligent Freshness for odor control

Regular Fit: Our men’s long underwear boasts a tagless design for a smooth, ultra-comfortable fit; Front and back rise come in true sizing for accurate fit

Efficient Design: Our men's thermal underwear features convenient gussets and a comfortable non-itch waistband that maintains coverage and allows for freedom of motion during various activities

*Alert: True to size : Please follow the size examples below*(EX: Size "Large recommended" - Size for 6" 215 lbs.) (EX: Size "Medium" 5'9"165 lbs.)

CQR FrostTech Series designed for active movement.

[Materials] 100% Polyester fabric is for moisture sensing, quick-dry, and 2-way air circulation.

Odor Resistant: Merino wool is extremely absorbent and has a breathable surface that quickly evaporates moisture without odors, keeping you dry. This is extremely important in cold winters to keep you from catching a cold. Great for outdoor activities, hiking/camping/hunting/skiing...

Temperature Regulation: One of Merino wool's most famous features is its natural ability to keep you warm when it's cold without feeling too hot, and cool when it's hot. There's no better way to wear a merino wool base layer mens in a changing climate.

Ultra Soft & Comfortable: 100% superfine 18.17 micron merino wool long sleeve shirt men is soft and comfortable, and fits gently against the skin without itching. Merino wool itself is extremely elastic, fits well and moves freely.

NOTE: Pay attention to the SIZE chart of the third picture to select the appropriate size

Breathable soft fabric dries quickly, wicks sweat away and releases heat, helps keep you cool & dry; Perfect for running, workout, jogging, hiking, and even as a moisture wicking undershirt

The harmony of shirt and black long sleeve collision color design adds stylish. Crew neck reduces friction

Men's tee for training

Tight fit is snug through the waist, hips and arms

Crewneck provides full coverage

Men's training tee for everyday wear

Crewneck provides full coverage

Long back hem helps keep shirt tucked in