11 Flannel-Lined Jeans That Will Keep You Warm—and Stylish—in Frosty Days

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DENIM JEANS are the world’s first uniform. They’re what the A-listers as well as what the average joes wear. They’re one of the few wardrobe staples that are truly timeless and everlasting. What jeans are not, however, is sensible: Under cold weather, they more or less become second-best to other winter pants because the fabric of standard jeans simply isn’t made for keeping the legs warm.

Read more: Best Denim Jackets for Men

Hence, a pair of run-of-the-mill jeans won’t cut in colder times. A pair of jeans with an extra layer of temperature defense, courtesy of the woven fabric brought to peak fame in the ‘90s by plaid patterns and still doted on by hipsters today, however, will. Hence, when the days get cold, flannel-lined jeans will make it all the more bearable.

Flannel-lined jeans are the best of both worlds: Rugged exterior denim united with cozy interior flannel. When the temperature drops, flannel-lined jeans help retain body heat and insulate your legs from the absolute-zero frigidity outside, without forcing you to sacrifice the eternal denim magnetism to the likes of joggers and regular pants. And compared to cashmere or mohair pants, flannel is much less costly.

Read more: Best Thermal Shirts

So, if you're ready to get through this winter in timeless style and sensible warmth—at least for the bottom half of your hot bod—check out the 10 best flannel-lined jeans for men below.

Double L Flannel-Lined Classic Fit Jeans

L.L.Bean makes one of the top two best-value, most classic flannel-lined jeans in the world, and this ain't number two. They're made with robust, abrasion-resistant cotton denim blended with cozy flannel that won't shrink or fade. And the worn-in wash just adds the cherry on top.

We love this pair because they bring the heat with their super heavyweight cotton denim, so you're not freezing during the intense winters. The durable lining helps ward off cold winds and makes morning strolls more bearable. Not to mention, after multiple washes, the pair remained soft and comfortable. Plus, this classic fit boasts enough style to beat out the competition.

What Do Buyers Say? "Classic style offers great fit and durability. This is my third pair. I use these instead of thermal underwear and stay comfortably warm plowing snow and hiking," says one llbean.com customer.

Read more: Best Work Pants for Men

Fireside Flannel Lined Jean

This, in our humble opinion, is the perfect pair of jeans, with an extra layer of flannel safeguard against the cold, exclusive-wash look for days, and the versatility to go from the indoor to the outdoor. Really, it's the pair of jeans that'll make you wonder why you ever settled for anything less than Bonobos's classic flannel-lined.

We tested the Fireside Jean on days when the temperatures plummeted and our bodies were kept toasty longer than expected. Offering a waist-to-toe warmth, the pair packs the right amount of flair and stretch for maximum comfort. Another bonus: they're made with soft fabric that's hypoallergenic, which is well suited for sensitive skin. Plus, you can select from multiple fits including tailored, slim taper, and athletic.

What Do Buyers Say? "Super comfortable! As soon as I put them on they were my new favorites," says one bonobos.com customer.

Relaxed Fit Flannel-Lined Straight Leg Jean

Finally, a pair of jeans not in a predictable shade of blue, but a refreshing hue of brown. But Lee's jeans are more than just a beauty. With a durable exterior and a soft flannel interior, they'll provide rugged comfort during outdoor work like chopping wood in a forest or conquering a trail.

We love to switch things up and this pair allows us to have a variety of styling options. They can be paired with sweatshirts or flannel shirts for a casual look as well as with vests and jackets to create a cozy winter ensemble. Also, the straight leg option has a mid rise design that affords bending and mobility with ease.

What Do Buyers Say? "Great for morning walks, outdoor yard work, everything. Great fit, feel and comfortable," says one lee.com customer.

Relaxed Fit Flannel-Lined 5-Pocket Jean

Of course, the brand that's practically synonymous with rugged workwear has a pair of flannel-lined jeans in its arsenal. And its loose, streamlined profile pairs makes it easy for layering with sweaters or button-downs, and goes well with any piece of footwear.

Our outdoorsmen will particularly appreciate the generous amount of pockets in the Carhartt relaxed fit flannel-lined jean. There's a total of five, which can store handy tools or other essentials. Plus, the straight leg opening lays perfect over your winter sneakers.

What Do Buyers Say? "If you live at a northern latitude and you often get cold when outside in the winter, these fleece lined pants are for you. They are warmer than the flannel lined ones and not as bulky," says one Amazon user.

Flannel-Lined Carpenter Jeans in Kenton Wash

Sure, you've got some great denim already. But do you have Madewell's Carpenter jeans that look right out of a '90s runway catalog, boast quite a few pockets, are lined with flannel for chilly days, and are crafted in selvedge denim from Japan? Didn't think so.

Our fashion editors felt their best when first trying on the carpenter-style jean and now they're in heavy rotation. Talk about super cozy, thanks to the extra layer of warmth that doesn't create any wrinkles or bulkiness. And to our surprise, it's zero stretch, but the cool slouch and breathing room in the thigh area make up for that.

What Do Buyers Say? "These jeans are perfect for colder days and always stylish," says one madewell.com customer.

Read more: Best Jeans Under $100 on Amazon

H2Low Flex Flannel-Lined Jeans

If you're looking for a pair of jeans that will last you through cold days but won't cost you, Eddie Bauer's flannel option sports rugged cotton for durability, a spandex blend for mobility, and a flannel interior for warmth.

We appreciate the thick barrier of the additional layer, which is will keep us warm all winter long. There's also enough stretch so we don't feel confined when we're walking or moving around in general. The universal fit is perfect—it's not too slim nor too relaxed.

What Do Buyers Say? "Love these jeans. They are perfect for those brisk days where the wind blows right through normal jeans. They are perfect for when it dips below 50. And they’re not too warm when you’re inside," says one Amazon user.

Rugged Wear Woodland Thermal Jean

Wrangler's option is perfect for your "Old Town Road" fantasy, with a cowboy cut and a regular (but still polished) fit. And since it's flannel-lined, you can throw this on in a rush without thinking twice when it gets chilly outside.

We appreciate how well this rugged thermal jean drapes over boots, especially cowboy boots. They fit comfortably and slightly oversized, but that's for good measure. Thanks to the lining that's made of genuine Thinsulate insulation, we feel incredibly warm in extreme conditions. That said, it's no doubt they'll be in our arsenal for winters to come.

What Do Buyers Say? "Thinsulate lining means these jeans are almost as warm as a down parka jacket. This lining material is also silky soft and feels more natural compared to the more artificial-feeling polyester fleece used in many competing pants,"says one Amazon user.

Read more: Best Cowboy Boots Brands

Flannel-Lined Pant

Jeans aren't the only bottoms receiving the flannel-lined treatment. Relaxed, mid-rise profile met with durable flannel lining, UpWest's twill pant is for when you need a little bit of sophistication to your outfits, but still want to look and feel comfortable.

We've worn this pair during our commute to the office and they've managed to perfectly sync with the rest of our work attire. They're versatile enough to pair with your thermal shirts as well as your flannel shirts. We almost reach for them every other day.

What Do Buyers Say? "Bought these to try and help with this harsh Minnesota winter. And UpWest means it when they say made for comfort. It’s so soft and the flannel inside is too,"says one upwest.com customer.

Read more: Best Thermal Underwear for Men

Warming Temp-iQ Denim Carpenter Jeans

Don't be fooled: It is not flannel-lined, but rather has a flannel-like interior as part of Dickies's Temp-iQ warming technology. It can be a better alternative to flannel-lined jeans since it doesn't add any bulk while keeping you warm, and is very breathable to boot.

Even though the lining isn't quite flannel, it still gets the job done when the cold sets in. In fact, its more breathable, stretchy and helps keep you dry regardless of how much movement you're making. Plus, they're extra relaxed in thigh and leg region, without appearing baggy.

What Do Buyers Say? "They are comfortable, form-fitting without being clingy, and the stretch feature is nice," says one Amazon user.

Traditional Fit Comfort First Flannel Lined Jeans

It's got a classic relaxing straight fit that will stick with you for years to come, a comfort-first stretch denim build that's very flexible, and some elastic sidebands at the waist that'll give you the ideal fit each time. Now that's a pair of dependable jeans.

Straight-fit Flannel-lined Cabin Pant

Not quite denim, but this fleece-lined pant still gets the job done with its extra layer of defense. To pull of vintage-inspired look, J.Crew used heavily washed cotton twill for its construction.

We love these pants for their versatility and durability, which makes them worth every dime. They can take us from day to night—from work to the bar—all while keeping us comfortable, stylish and warm. Also, they would make a great companion for any outdoor activities in cold weather including camping, hiking, and cycling.

How to Care for Flannel-Lined Jeans

Like every other garment, make sure to check the instructions for the best care on the inside tag. Most flannel-lined jeans can be machine washed, but we suggest turning them inside out and using a mild detergent. You can toss them in the dryer on a low heat temperature or allow them to air dry to maintain their quality.

What To Look For in Flannel-Lined Jeans

The main purpose of flannel-lined jeans is to provide maximum warmth during the colder months. Choosing the best pair depends on preference as well as some a few other important factors.

Weight of Fleece: The level of warmth relies heavily on the weight of the fleece lining. So, if you're looking for a lightweight feel that works better than your typical denim trousers, then go with a thin layer of flannel lining that's soft, but still capable of protecting you from the wind. Mid-weight fleece offer versatility and optimal comfort, without adding unnecessary any bulk. To achieve sweatpants-level insulation, opt for faux-shearling-lined jeans.

Fit and Rise: Low-rise jeans tend to flatter a thinner physique, but not provide the best coverage in brisk temperatures. Mid-rise jeans are more classic and easier to style with different tops like sweaters and tuck-in shirts. High-waisted styles provide the most coverage around your waistline and lower back. But they're likely to bunch more around the midsection and create unwanted bulk.

How We Selected

For the past two years, Men's Health fashion editors and writers have been wear-testing tons of flannel-lined jeans. To narrow down our favorites, we evaluated flannel-lined jeans based on their warmth, style, and comfort. We also considered price point, as some jeans provide a better overall value than others.

Why Trust Men's Health

At Men's Health, we take great pride in providing our readers with reliable and trustworthy product recommendations. We believe that our readers deserve the best, which is why we always make sure to conduct thorough research and testing before making any recommendations.

Our editors and writers are experts in their own right, using their informed opinions to select products and ensuring that our content is of the highest quality. They have been testing flannel-lined jeans during their morning commutes, casual outings, and other outdoor activities such as biking, hiking, camping and more.

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