Men's Baselayer Tops

Whether you're scouting before the season or find yourself in the throngs of early-season heat waves, the Men's Wick Ultralight 150 Aerowool Short Sleeve Crew shirt is here to help keep you dry and comfortable. The airy 150 gram Aerowool construction features 37.5 active particle technology and will dry rapidly without compromising durability or odor resistance. This layer also features 125-gram Aerowool mesh panels to maximize ventilation during active hunts. The Wick Ultralight 150 is the new standard for quick drying, odor-resistant, ultralight hunting clothing.

Ultralight 150 Aerowool construction combines the finest, 17.5 micron merino wool available with 37.5-activated nylon fibers to create a super-charged fabric with incredible performance benefits. What you get is enhanced odor resistance, improved durability and moisture wicking, and a fabric that can cool you down when you're heating up and warm you up when it's cooling down.

Specifications for First Lite Wick Short Sleeve Crew - Men's:

Features of First Lite Wick Short Sleeve Crew - Men's

• True to size: Purchase your normal size to wear over or under other layers
• Exclusive 37.5 Active Particle Technology
• Exhausts moisture and maintains core body temperature
• Traps odors (human signature) and releases them when laundered
• Exhausts moisture and maintains core body temperature
• Traps odors (human signature) and releases them when laundered
• 17.5 micron, ultrafine, Merino wool
• Mesh vent panels to maximize ventilation
• Short sleeves for hot weather hunts
• Modified raglan sleeve moves seams out from under backpack shoulder straps
• Flatlock seams for next-to-skin comfort
• Machine wash, line dry
• Naturally UV absorbent to eliminate shine

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• First Lite Wick Short Sleeve Crew - Men's

From the archery opener in Carolina to desert aoudad in Texas, the Men's Wick Crew is First Lite's next-to-skin base layer for high-output hunts in hot weather. This long-sleeve crew neck's airy 150 gram Aerowool construction features 37.5 active particle technology and will dry rapidly without compromising durability or odor resistance. This layer also features 125-gram Aerowool mesh panels to maximize ventilation during active hunts. The Men's Wick Crew is the new standard for quick drying, odor-resistant, ultralight baselayers and is always worn as your first, next-to-skin layer.

Ultralight 150 Aerowool construction combines the finest, 17.5 micron merino wool available with 37.5-activated nylon fibers to create a super-charged fabric with incredible performance benefits. Our Wick styles also integrate 125 gram Aerowool mesh to targeted hot-zones, which also utilizes 17.5 micron merino and 37.5-activated nylon fibers. What you get is enhanced odor resistance, exponentially improved dry times, increased durability and moisture wicking, and a fabric that can cool you down when you're heating up and warm you up when it's cooling down.

Specifications for First Lite Wick Long Sleeve Crew - Men's:

Features of First Lite Wick Long Sleeve Crew - Men's

• Exclusive 37.5 Active Particle Technology
• Exhausts moisture and maintains core body temperature
• Traps odors (human signature) and releases them when laundered
• 17.5 micron, ultrafine, Merino wool
• Mesh vent panels to maximize ventilation
• Modified raglan sleeve moves seams out from under backpack shoulder straps
• Ergonomic cuff with thumb loops
• Flatlock seams for next-to-skin comfort
• Machine wash, line dry
• Naturally UV absorbent to eliminate shine

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• First Lite Wick Long Sleeve Crew - Men's

A super versatile layer that will see you from the first crisp mornings of spring to the heat of high summer, this breathable sun hoody is built with UV-protective Dryflo Solar fabric to shield you from harmful rays. Exceptionally wicking and comfortable next to your skin, it's great as a standalone layer, yet it also has a roomy regular fit to accommodate a tee underneath in cooler conditions. Treated with an odour control finish, it stays fresh over multiple days, perfect for your treks and overnight adventures.

Specifications for Rab Force Hoody - Men's:

Features of Rab Force Hoody - Men's

• Breathable, wicking Dryflo Solar fabric delivers UPF 40+ sun protection, ideal for exploring in the heat.
• Stays fresh over multiple days thanks to an odour control treatment.
• Shelter from the sun with the protective, close-fitting hood and high collar.
• Comfy with backpack straps thanks to the low-profile, dropped shoulder seams.
• Prevent the sleeves from riding up using the hidden stretch thumb loops.

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• Rab Force Hoody - Men's

When the sun's beating down and temperatures are soaring, this technical zip tee is designed to keep you cool, sweat-free, and protected. It's built with a lightweight, breathable Dryflo Solar fabric that wicks quickly and stays comfortable, whether worn as a base or standalone layer. It also offers UPF 40+ sun protection, ideal for exposed trails or climbs with little shade. Finished with an odour control treatment, it's perfect for multi-day adventures, packing down small and still useable on day two. With a wearable, casual fit, it's a staple tee that every mountain person needs on their kit list.

Specifications for Rab Force Long Sleeve Zip - Men's:

Features of Rab Force Long Sleeve Zip - Men's

• Breathable, wicking Dryflo Solar fabric delivers UPF 40+ sun protection, ideal for exploring in the heat.
• Stays fresh over multiple days thanks to an odour control treatment.
• Comfortable next to skin with low-profile seams.
• A lightweight, deep centre-front zip provides extra venting in hot temperatures.
• Comfy with backpack straps or your running vest thanks to the dropped shoulder seams.
• Integrated thumb opening at the cuffs to keep the sleeves in place.

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• Rab Force Long Sleeve Zip - Men's

When you need a baselayer that's highly breathable but a little more substantial than a tee, the Rivelin Hoody is built with a soft, wicking fabric and underarm mesh inserts to keep you comfortable however hard you're working. From steep scrambles and hard-working hikes to chilly trail runs and sunset bouldering sessions, it adapts to any pursuit, in any conditions.

Specifications for Rab Rivelin Hoody - Men's:

Features of Rab Rivelin Hoody - Men's

• Wicking, fast-drying Dryflo fabric keeps you comfortable when you're pushing yourself.
• Encourages airflow with mesh inserts under the arms.
• Raglan sleeve construction.
• Soft, close-fitting hood with mesh detail and a comfy wrap neck.
• Thumb loops prevent sleeves from riding up when you're bouldering.

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• Rab Rivelin Hoody - Men's

One of the best parts of Smartwool base layers is that they help reduce some of the uncomfortable distractions intense activity can produce. This crew top features our Intraknit technology-where insulation, articulation, and ventilation are seamlessly integrated to help enhance movement and comfort. The fabric helps combine the moisture management, temperature regulation, and odor resistance of Merino with TENCEL Lyocell fiber to help keep you cool. And with minimal seams to help reduce chafing, this top will allow you to focus on taking your workout to the next level. So go out there and feel good doing it!

Specifications for Smartwool Intraknit All-Season Merino Base Layer Crew - Men's:

Features of Smartwool Intraknit All-Season Merino Base Layer Crew - Men's

• Fabric blends the moisture management, temperature regulation, and odor resistance of Merino with TENCEL Lyocell fiber to help keep you cool

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• Smartwool Intraknit All-Season Merino Base Layer Crew - Men's

Our popular Classic All-Season Merino Base Layer 1/4 Zip is the perfect base layer for warm or cold weather. This top uses our All-Season-weight Merino fabric wrapped around a nylon core to increase durability, while still keeping the 100% soft, Merino wool you love next to skin. Side seams help minimize chafing while wearing a pack and offer a body-enhancing fit. This base layer is comfortable, powerful, sustainable, and, frankly, do-it-all-able.

Specifications for Smartwool Classic All-Season 1/4 Zip Merino Base Layer - Men's:

Features of Smartwool Classic All-Season 1/4 Zip Merino Base Layer - Men's

• Our lightweight Merino jersey fabric uses a recycled nylon core while still keeping 100% Merino wool next to skin

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• Smartwool Classic All-Season 1/4 Zip Merino Base Layer - Men's

The Men's Merino 150 GSM Hoodie is designed for comfort and performance from early season to late season layering. The Merino wool fabric is highly breathable and wicks moisture. Featuring a contoured form fitting hood that doesn't obstruct views when moving around. Designed with snag-preventative stitching along the sleeves enhances overall durability and strength. Other features include two chest pockets, integrated thumb holes for easier layering. This piece of gear excels in early season but works well in the later season with additional layering.

Specifications for Huto Lifestyle Merino Wool 150GSM Base Layer Hoodie:

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• Huto Lifestyle Merino Wool 150GSM Base Layer Hoodie
• Noted in description and specs

A heavyweight merino base layer top designed to help regulate temperature during high-intensity activity, the 260 ZoneKnit Long Sleeve Crewe features 100% pure and natural merino wool.

Specifications for Icebreaker Merino 260 ZoneKnit Long Sleeve Crew Thermal Top - Men's:

Features of Icebreaker Merino 260 ZoneKnit Long Sleeve Crew Thermal Top - Men's

• Engineered body mapped technology to regulate your body temperature and let your skin breathe during high-intensity activity
• Thumb slits keep your sleeves in place and hands warm
• Raglan sleeve construction for mobility
• Gusseted underarms for mobility and comfort
• Flatlock seams to prevent friction
• Drop tail hem for added coverage

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• Icebreaker Merino 260 ZoneKnit Long Sleeve Crew Thermal Top - Men's

Specifications for Icebreaker Merino 260 ZoneKnit Long Sleeve Half Zip Thermal Top - Men's:

Features of Icebreaker Merino 260 ZoneKnit Long Sleeve Half Zip Thermal Top - Men's:

• ZoneKnit - Zoned engineered performance to help regulate your body temperature during high-intensity activity
• Half zip designed for comfort in varying temperatures
• Gusset for mobility and comfort
• Eyelet mesh for added breathability
• Thumb loops to help keep your sleeves in place and for added coverage
• Raglan sleeves to help reduce friction
• Flatlock seams to help reduce friction
• Dipped hem for added coverage

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• Icebreaker Merino 260 ZoneKnit Long Sleeve Half Zip Thermal Top - Men's

A warmer, midweight version of our best-selling Oasis, the 260 Tech Long Sleeve Crewe is a go-to piece for winter layering, made with 100% merino wool.

Specifications for Icebreaker Merino 260 Tech Long Sleeve Crew Thermal Top - Men's:

Features of Icebreaker Merino 260 Tech Long Sleeve Crew Thermal Top - Men's

• Soft, lightweight and naturally odour resistant fibre that keeps you warm when it's cold and cool when it's warm
• Gusseted underarms for mobility and comfort
• Offset shoulder seams to help reduce friction
• Flatlock seams to help reduce friction
• Backward set side seams to prevent friction

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• Icebreaker Merino 260 Tech Long Sleeve Crew Thermal Top - Men's

A midweight merino base layer top designed to help regulate temperature during high-intensity activity, the 200 ZoneKnit Long Sleeve Crewe features 100% pure and natural merino wool.

Specifications for Icebreaker Merino 200 ZoneKnit Long Sleeve Crew Thermal Top - Men's:

Features of Icebreaker Merino 200 ZoneKnit Long Sleeve Crew Thermal Top - Men's

• Body mapping technology designed to actively regulate body temperature and let skin breathe during high-intensity activity
• Raglan sleeve construction for mobility
• Thumb loops to keep your sleeves in place and hands warm
• Gusseted underarms for mobility and comfort
• Flatlock seams to prevent friction
• Drop tail hem for added coverage

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• Icebreaker Merino 200 ZoneKnit Long Sleeve Crew Thermal Top - Men's

An incredibly warm merino wool base layer for the coldest months of the year, the Merino 260 Tech Long Sleeve Half Zip is a go-to piece for winter layeringideal for skiing, snowshoeing and other cold-weather pursuits.

Specifications for Icebreaker Merino 260 Tech Long Sleeve Half Zip Thermal Top - Men's:

Features of Icebreaker Merino 260 Tech Long Sleeve Half Zip Thermal Top - Men's

• 100% Merino wool - Soft, lightweight and naturally odour resistant fibre that keeps you warm when it's cold and cool when it's warm
• Gusseted underarms for mobility and comfort
• Offset shoulder seams to help reduce friction
• Flatlock seams to help reduce friction
• Backward set side seams to prevent friction

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• Icebreaker Merino 260 Tech Long Sleeve Half Zip Thermal Top - Men's

A versatile baselayer with ergonomic seaming that wicks sweat and reflects body heat back to you.

Specifications for Columbia Midweight Stretch Long Sleeve Top - Men's:

Features of Columbia Midweight Stretch Long Sleeve Top - Men's

• Omni-Heat thermal-reflective breathable lining retains warmth using silver dots that reflect body heat, so you stay warm and comfortable as temps drop
• Omni-Wick keeps you dry and cool by pulling moisture to the fabrics surface to evaporate, delivering fast-drying, next-to skin comfort in the heat
• 4-way comfort stretch
• Captures and neutralizes odor for long-lasting freshness
• Ergonomic seaming
• Flatlocked construction

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• Columbia Midweight Stretch Long Sleeve Top - Men's

Spring skiing or summer camping? The year-round Men's Classic All-Season Merino Base Layer Long Sleeve is game for either. With our Core Spun technology, we've wrapped lightweight Merino around a nylon core for added durability, while still keeping the comfort of ultra-soft, responsibly-sourced Merino next to skin. We added smooth flatlock seams to help minimize chafing and offset shoulder and side seams to lie smoothly beneath pack straps. No matter the season or the activity, this base layer is made for it.

Specifications for Smartwool Classic All-Season Merino Base Layer Crew - Men's:

Features of Smartwool Classic All-Season Merino Base Layer Crew - Men's

• Our lightweight Merino jersey fabric uses a recycled nylon core while still keeping 100% Merino wool next to skin

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• Smartwool Classic All-Season Merino Base Layer Crew - Men's

We've updated the fit of our Men's Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature-regulated as you enjoy high-intensity skiing, hiking, running, and more

Specifications for Smartwool Classic Thermal Merino Base Layer 1/4 Zip - Men's:

Features of Smartwool Classic Thermal Merino Base Layer 1/4 Zip - Men's

• Our slim fit is intended to follow the contours of the body
• Fabric helps combine the moisture management, temperature regulation, and odor resistance of 100% Merino wool with interlock knit for comfort
• Flatlock seam construction and offset shoulder and side seams designed to help increase comfort and minimize chafing
• Side seams wrap to front

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• Smartwool Classic Thermal Merino Base Layer 1/4 Zip - Men's

The benchmark against which all others are judged, the Merino 200 Oasis Long Sleeve Half Zip features most versatile merino wool jersey fabric for year-round layering performance across any activity.

Specifications for Icebreaker Merino 200 Oasis Long Sleeve Half Zip Thermal Top - Men's:

Features of Icebreaker Merino 200 Oasis Long Sleeve Half Zip Thermal Top - Men's

• 100% Merino wool - Soft, lightweight and naturally odour resistant fibre that keeps you warm when it's cold and cool when it's warm
• Gusseted underarms for mobility and comfort
• Offset shoulder seams to help reduce friction
• Flatlock seams to help reduce friction
• Drop tail hem for added coverage

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• Icebreaker Merino 200 Oasis Long Sleeve Half Zip Thermal Top - Men's

Every operator needs a baselayer they can depend on to perform in any condition. Constructed using VaporCore, powered by 37.5 technology, the short sleeve Full Guard Performance Shirt provides unmatched moisture and heat management no matter the environment. Whether youre putting in work at the range or in the gym the shirts raglan style sleeve, semi-compression fit and long-line hem ensure maximum mobility and coverage while on the move. Built for the Prepared Professional, the Full Guard Performance Shirt is more than the average baselayer

Specifications for Vertx Full Guard Performance Shirt - Men's:

Features of Vertx Full Guard Performance Shirt - Men's

• Semi-compression fit comfortably skims the body without squeezing
• Longline hem stays tucked in during every activity level
• Raglan style sleeves reduce shoulder restriction for added comfort and mobility
• Easily layers under low-profile or overt pieces to increase performance in the field
• Gusseted underarm provides increased range of motion
• Hidden mini stash pocket lets you pre-load items up to 2'' long

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• Vertx Full Guard Performance Shirt - Men's

Whether you're running tough mountain trails, hiking at pace, or heading on a multi-day adventure where you're low on pack space, this lightweight, packable zip tee adapts to it all. Crafted with breathable Dryflo Air fabric with odour control technology, it wicks sweat and stays fresh day after day. Ideal as a standalone tee or as an additional layer of protection in cooler conditions, it keeps you comfortable from the first stride to the final step.

Specifications for Rab Sonic Long Sleeve Zip - Men's:

Features of Rab Sonic Long Sleeve Zip - Men's

• Lightweight, wicking Dryflo Air fabric offers rapid drying and maximum airflow to keep you cool and sweat-free.
• Stays fresh over multiple days thanks to an odour control treatment.
• Add extra ventilation when you need it with the deep chest zip.
• The strong microactive seams are comfortable next to your skin.
• Gives you a full range of arm movement with raglan sleeve construction.
• Keep sleeves in place with the hidden stretch thumb loops.

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• Rab Sonic Long Sleeve Zip - Men's

Equinoxx K2 Thermal is a shirt that'll keep you warm and comfortable in the harshest weather. It retains body heat, blocks wind, and resists rain. It's breathable, so you dont overheat after coming in out of the cold. Thanks to its special material and construction, it also gives you the flexibility and freedom of movement to perform at your best at work or play.

K2 is ideal for anyone who works outdoors and could benefit from freedom of movement as well as protection from cold, windy, and wet weatherfrom postal workers and courier drivers to traffic and school crossing guards; from cable installers and linesmen to construction and oil rig workers. K2 is also great for any kind of outdoor recreational activity, such as hunting, fishing, hiking, camping, golf, skiing, ice skating, bird watching....You name it! It's also good for motorcycle riders who need to block the cold wind.

Police and security personnel who already have our Stage 3 as a body armor base layer may want K2 for their cold-weather leisure activities.

Specifications for 221B Tactical Equinoxx K2 Thermal Baselayer - Men's:

Features of 221B Tactical Equinoxx K2 Thermal Baselayer - Men's

• Full 360 grid thermal protection
• Maximum body heat retention
• Temperature rating: sub 15 F / -9.45 C
• Superior mobility
• Water resistant
• Wind blocking
• Breathable, for coming in out of the cold
• Extended compression sleeve cuffs
• Extended torso length - stays tucked in
• Mock neck design

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• 221B Tactical Equinoxx K2 Thermal Baselayer - Men's

Specifications for Black Diamond Coefficient LT QZ Po - Men's:

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• Black Diamond Coefficient LT QZ Po - Men's