What To Wear Under A Flannel (Men’s Guide)

You know it’s the flannel season when you’re suddenly bombarded with images of lumberjacks, plaid, and flannel shirts. But what if you don’t have a flannel shirt? Or what if you’re not sure how to wear one? Fret not!; this guide will tell you everything you need to know about wearing flannels and keeping warm during autumn & winter.

What To Wear Under A Flannel (Men's Guide)

What Is Flannel?

Flannel is a woven fabric, usually made from wool or cotton. It can come in many different colors, patterns, and textures. Some types of flannel are used as clothing (like shirts or pants), and others are used for other purposes (like bed sheets).

When Do You Wear A Flannel?

A lot of guys wear flannels mostly during the fall and winter months because they add warmth to any outfit. They’re perfect for casual occasions like hanging out at home or hiking in the woods.

You can even dress them up by pairing them with a suit jacket and button-down shirt while at dinner on a Friday night!

Wearing a flannel shirt is a great way to stand out in a crowd. The shirt is comfortable and warm and looks great on any man. It’s also a good idea to wear one if you want to look stylish.

Here are some tips for wearing flannels as a man:

  • Personal Style

Before you can learn how to wear flannels, you need to figure out your personal style. If you can’t describe your style or if it changes frequently, chances are that you don’t have one. The first step toward learning how to wear flannels is figuring out why exactly they appeal so much to you in the first place.

Is it just because they’re cozy? Or do they make you feel like a lumberjack? Do they remind you of your childhood? Or are they just something that looks cool?

  • Wear them with confidence

The second thing you need to do is wear your flannel confidently. It would help if you were not shy about wearing it because it will make you look more attractive when you are comfortable with what you are wearing.

It’s also important to remember that wearing flannels does not mean they have to be worn with shirts only; they can be worn under jackets too!

  • Wear them with jeans or khakis

Wearing jeans or khakis along with your flannel will ensure that you look good when you step out in public or attend parties and other events with many people.

Make sure that you wear nice shoes and accessories like belts, wallets, etc., along with your jeans, khakis, and flannel shirt so that your outfit looks complete and complete!

  • Tuck It In

Tucking your shirt in is a great way to show off the flannel, especially if you’re wearing it with jeans or chinos. It also looks good with khakis for a more dressed-up vibe. But if you’re wearing a tie, don’t tuck it in!

When you tuck your shirt in, make sure that there’s no extra shirt fabric bunching up around the waistband of your pants–it’ll just look sloppy and awkward.

  • Roll Your Sleeves

Roll your sleeves up to 3/4 length to show off your tattoo.

Roll your sleeves down to 1/2 when you feel warm and are too lazy to take them off. This is also a great look for going through car washes because you can easily slide them back on when the window washer asks if you want a wash.

Roll the sleeve up all the way if it’s cold out, but keep in mind that this will make it harder for people who are helping themselves by looking at their phone while driving by to see if they recognize you or not.

Fold in half so that both sides meet at the bottom of your wrist like an infinity scarf (or how I imagine one would look).

  • Wear a Solid Over a Plaid

If you want to wear a solid under your flannel, I recommend doing so. While plaids are more versatile and can be worn with other plaids, solids tend to be more versatile. So if you’re going for the “I have too many clothes in my closet” look, stick with solids for versatility.

10 Types of Clothing To Wear Under Flannel

1. Wear a T-shirt under your flannel

T-shirts are a great option for layering underneath a flannel shirt. They’re thin enough that they won’t bulk up the silhouette of your flannel, but they’re still thick enough to keep you warm in cold weather. The best t-shirts to wear under a flannel are made from breathable materials like cotton or linen.

These fabrics will help keep you cool when it’s warm out but also keep you warm when it’s cold out by absorbing moisture from your skin and releasing it into the air around you.

2. Wear Long Sleeve under your flannel

Shirts Long sleeve shirts are another good choice for layering underneath a flannel shirt, especially if you don’t want to wear anything too heavy or bulky underneath it.

Long sleeve shirts won’t add any extra bulk to your outfit, but they’ll still provide insulation against cold temperatures and prevent drafts from sneaking through gaps between layers. They also come in all sorts of different colors

3. Choose a collared shirt to wear under your flannel.

When choosing a shirt to wear under your flannel, you want to go for something more formal than a t-shirt. A collared shirt will give you the most versatility and also make it easier for you to dress up or down, depending on what else is in your closet.

When selecting a shirt for this purpose, consider color and thickness. You don’t want the color of your flannel and a collared shirt to be too similar because then it will look like one giant piece of clothing on top of another—and that’s not very fashionable!

Also, make sure that the fabric isn’t so thick (like corduroy) that it makes wearing a flannel underneath uncomfortable.

Lastly, keep in mind how long the sleeves are: if they’re too long or wide at all times, they’ll just get in the way and potentially bunch up under or around other layers (which can lead to discomfort).

4. Wear an oxford shirt under your flannel

A pair of oxford shirts can provide the right amount of warmth without sacrificing style. Oxford shirts are made of cotton and polyester, which allows them to be easily worn year-round.

They come in various colors, making them appropriate for fall with flannels, spring with pastel-colored polos, and even winter under sweaters.

Oxford shirts are more formal than t-shirts and thermal shirts but less formal than long sleeve polo shirts.

5. Wear a long sleeve white polo shirt under your flannel

A white polo shirt’s clean, classic look is perfect for layering. This is a good option if you’re trying to look professional while keeping things simple.

6. Wear a sweater under a flannel

A sweater is the most classic undergarment for a flannel shirt. It’s warm and stylish, so it’s the perfect combination. If you’re looking for something that will make your outfit more casual, try wearing an oversized sweater over the top of your flannel.

7. Wear a hoodie under your flannel

A hoodie is an excellent choice for undergarments because it keeps your torso warm while preventing your chest from looking too bulky. It also provides enough mobility, so you don’t feel restricted when moving around or sitting down.

8. Wear a henley under your flannel

The henley is a great shirt for layering because it has the same collar as a t-shirt and can be worn alone or as an undershirt. The henley is a classic that has been around for years, but it’s still very relevant today.

It’s perfect for those who want to dress up their flannel but don’t want to wear a button-down shirt underneath.

Consider wearing an oversized henley underneath your flannel if you have long arms. This will give you more length in the sleeves and provide extra coverage to keep you warm during cold weather.

9. Wear a turtleneck under your flannel

If you’re looking to dress up your flannel, a turtleneck is a great way to go. Turtlenecks are one of the oldest and most versatile styles of sweaters in existence. They keep your neck warm and easily layer under or over other shirts.

The classic look of a turtleneck can be worn with many different styles, from jeans to slacks, making it perfect for all occasions—and it looks great under a flannel!

10. Wear a thermal shirt beneath your flannel

A thermal shirt is a great alternative to a long-sleeve shirt under your flannel. A thermal shirt is made from synthetic fibers as opposed to cotton, so it will be less likely to wrinkle and pill.

They’re also lightweight and easy to care for, meaning you can toss them in the dryer without worrying about any shrinkage or fading.

When layered under your flannel, they’ll keep you warm without overheating, which is especially important when paired with boots on a brisk fall day!


You can never go wrong with layering, and it’s especially important when it comes to flannel shirts. Don’t be afraid to try something new!

The great thing about flannels is that they work well in many different styles of outfits—so if you find yourself getting bored with your current wardrobe, try experimenting with some fresh new looks by layering up with a flannel underneath!