11 Best Long Sleeve Undershirts for Every Man
Finding the best long sleeve undershirts for men comes down to more than just fit. The right one keeps you comfortable, confident, and ready for anything. Whether you need a sweat-proof base layer for the office, an odor-resistant option for travel, or a performance shirt for outdoor adventures, there’s an undershirt built for your needs.
In this guide, we’ve rounded up the best long sleeve undershirts across every budget, style, and use case. From everyday basics to high-performance fabrics, these picks will help you layer smarter, stay fresher, and get more wear out of your wardrobe.
The Lowdown:
- If sweat-proofing is your priority, Thompson Tee is unmatched.
- For outdoor adventures, Patagonia or Merino 150 are excellent picks.
- On a budget but still want quality? Mr. Davis or TELALEO offer great value.
- Need work-specific gear? Bulwark’s FR shirt is the safest bet.
What to Look for in a Long-Sleeve Undershirt
Before you click “add to cart,” it helps to know what really sets a great long sleeve undershirt apart from a basic one. Here’s what to consider while you shop:
- Fabric: Choose what suits your needs — breathable cotton for everyday comfort, modal blends for a softer, silkier feel, or performance fabrics for moisture control and durability.
- Fit: Slim fits work best for layering under dress shirts or sweaters, while relaxed fits are perfect for casual wear or lounging.
- Moisture Control: If sweat or odor is a concern, look for moisture-wicking or sweat-proof technology to keep you dry and confident throughout the day.
- Neckline Options: Crew necks are the most versatile, v-necks stay hidden under unbuttoned dress shirts, and henleys work well as a standalone casual layer.
- Color Choices: Neutral tones, such as white, gray, and black, tend to disappear under layers, while bolder colors can serve as standalone casual shirts.
Best Long-Sleeve Undershirt for Men
Now that you know what to look for in the right undershirt, let’s take a look at some of the best long-sleeve undershirts for men—for any occasion, objective or outfit.
1. Best for Sweat Protection: Thompson Tee Sweat Proof Long Sleeve Undershirt
If sweat is your biggest frustration, Thompson Tee is the no-brainer pick. Its Hydro-Shield® sweat-proof technology keeps your outer layers dry and your confidence high—whether you’re in a boardroom, at a wedding, or just running errands.
- Best for: Everyday wear or layering under work or casual outfits
- Material: Supima cotton and Micromodal blend
- Fit: Fitted but relaxed
- Price: $39.99
Why we love it: It’s discreet, comfortable, and backed by a 30-day satisfaction guarantee. If underarm sweat marks or odor have ever ruined an outfit, this is your most practical investment.
2. Best for Outdoor Activities & Sun Protection: Patagonia Men's Long-Sleeved Capilene® Cool Daily Shirt
For guys who live in their hiking boots or spend weekends on the water, Patagonia delivers a versatile undershirt that keeps up. Its UPF 50+ sun protection and odor-control tech make it perfect for everything from kayaking to mountain hikes.
- Best for: Athletes, hikers, or anyone who loves the outdoors
- Material: 50-100% recycled polyester
- Fit: Regular, crewneck
- Price: $45
Why we love it: It’s durable, quick-drying, and sustainable. The fabric stretches enough for all-day comfort without clinging or restricting your movement.
3. Best Temperature Regulation: Bombas Men's Merino Wool Crew Neck Long Sleeve T-Shirt
This is the shirt that adapts to your environment. Thanks to its merino wool and TENCEL™ Lyocell blend, Bombas keeps you cool indoors and warm when temperatures drop.
- Best for: Professionals or anyone who wants an easy office-to-outdoors option
- Material: 50% merino wool, 50% TENCEL™ Lyocell
- Fit: Relaxed, crewneck
- Price: $78
Why we love it: Beyond its comfort, Bombas donates one shirt for every one purchased. It’s a win for your wardrobe and your conscience.
4. Best Made-in-USA Classic: American Giant Premium Slub Crew T
Sometimes, you just want quality basics without the technical bells and whistles. American Giant nails it with their Premium Slub Crew, a timeless long sleeve made in the USA.
- Best for: Everyday wear and layering
- Material: 100% cotton
- Fit: Classic and comfortable
- Price: $85
Why we love it: The slub fabric feels substantial and looks great on its own or layered. While it’s pricey for a non-technical piece, the craftsmanship makes it worthwhile if you're looking for an everyday staple.
5. Best for Travel: icebreaker Merino 150 Anatomica Long Sleeve Crew Top
Minimalist travelers swear by this one. Lightweight, wrinkle-resistant, and naturally odor-proof, the Merino 150 Anatomica by icebreaker is the perfect undershirt to pack light without sacrificing freshness.
- Best for: Frequent travelers and digital nomads
- Material: 100% merino wool
- Fit: Slim, body-con for easy layering
- Price: $85
Why we love it: Wear it multiple days in a row without washing and it still feels fresh. It’s breathable in hot climates, insulating in cold, and takes up almost no space in your bag.
6. Best for Rivaling Odor: Mr. Davis’ Versatile Long Sleeve Undershirt
If you’ve ever worried about odor lingering on your clothes, Mr. Davis has you covered. Made from naturally antibacterial bamboo viscose, this undershirt helps resist odor-causing bacteria, keeping you fresh throughout long days, commutes, or nights out.
- Best for: Men who want a fresh, odor-free undershirt for everyday wear
- Material: 96% bamboo viscose, 4% spandex
- Fit: Relaxed yet tailored for comfort and layering
- Price: $32
Why we love it: It’s soft, sustainable, and designed for all-day wear without that “lived-in” smell. Whether you’re traveling, working, or just running errands, this shirt stays fresh longer so you can feel confident in any situation.
7. Best for Work-Specific Protection: Bulwark iQ Series® Comfort Knit Men's FR Long Sleeve T-Shirt
If your job requires flame-resistant clothing, Bulwark’s FR undershirt is the safest way to stay dry and comfortable while staying compliant with safety standards.
- Best for: Electricians, mechanics, and industrial workers
- Material: FR cotton blend
- Fit: Regular
- Price: $112.49
Why we love it: It strikes a balance between safety and comfort without feeling heavy or restrictive, and it withstands tough job-site conditions.
8. Best for Stretch & Mobility: Nike Pro Men's Dri-FIT Slim Long-Sleeve Fitness Top
Whether you’re hitting the gym, doing yoga, or have a physically demanding job, this compression-fit Nike Pro shirt moves with you while keeping sweat in check.
- Best for: Athletes or physically active jobs
- Material: Polyester and spandex
- Fit: Slim compression
- Price: $35
Why we love it: It’s lightweight, breathable, and feels invisible under your clothes. Mesh panels at sweat zones add extra comfort during high-intensity activity.
9. Best for Layering Invisibility: TELALEO Compression Shirt
If you need a base layer that disappears under your clothes, TELALEO’s compression shirt delivers a second-skin fit without bulk.
- Best for: Discreet layering under dress shirts or fitted outfits
- Material: Polyester and spandex
- Fit: Ultra-snug with full stretch
- Price: $29.99
Why we love it: It’s budget-friendly, moisture-wicking, and holds its shape after countless washes.
10. Best for Long Torsos: Duluth Trading Co. Longtail T Long Sleeve Undershirt
For tall guys or anyone tired of undershirts riding up, Duluth’s Longtail T is a game-changer.
- Best for: Tall men or anyone needing extra length
- Material: 100% cotton (with blended options)
- Fit: Regular with added length
- Price: $29.50
Why we love it: It stays tucked no matter how much you move. Duluth even calls it their “solution to Plumber’s Butt,” and they’re not wrong.
11. Best for Sensitive Skin: Pact Organic Cotton Men's Long Sleeve Crew Undershirt
Made from 100% organic cotton, this Pact undershirt is gentle enough for men with eczema, allergies, or generally sensitive skin.
- Best for: Sensitive or allergy-prone skin
- Material: GOTS-certified organic cotton
- Fit: Slim yet breathable
- Price: $25.20
Why we love it: It’s hypoallergenic, sustainably made, and soft without any chemical irritants—making it one of the healthiest options for daily wear.
