If comfort, fit, and warmth are what you’re after, the Smartwool Intraknit are the best baselayer bottoms for you. The knit structure moves with your body and gives your legs the perfect warm hug, whether you’re outside skiing or out and about on a cold day. For anyone who’s averse to wool – whether due to personal taste or budgetary reasons – silk is a good way to go. You’ll probably find yourself using it more than you thought. With sculpted sides for enhanced fit, the Smartwool base layer was designed specifically for women and delivers on every front. It’s super comfortable and feels soft and warm against even the most sensitive skin. If you’re no stranger to snow, ice, and extremely cold weather conditions, you’ll want to gear up against the elements with the Icebreaker 260 Tech half-zip base layer. This thing is really warm with a heavyweight layer, but is built with stretchy fabric and mesh panels that make it breathable and easy to move in.

Oh, and they look cool too. Even if you wear them mostly underneath an outer layer, the geometric mesh design makes for a nice-looking pair of tights. Long underwear that’s both functional and fashionable? Yep, you heard right.Silk is a favorable alternative material to a merino wool base layer. For thru-hikers looking for a breathable, ultralight, yet warm base layer – that won’t break the bank – consider choosing this one. This REI brand long underwear shirt is lightweight, cheap, and will do the job. Merino wool’s weakness is in the cost. Long underwear made of pure Merino wool is usually quite expensive. It’s not as durable as a synthetic material, so you must find the value in its comfort, temperature regulation, and odor-resistance to make your investment worthwhile. Silk:

Silk is a great all-natural alternative for less sweat-inducing activities. Silk’s greatest strength is how soft it feels as a second skin layer. It’s extremely lightweight, which makes it comfortable and easy to layer. And ladies, you’ll love that you can wear this thing multiple times without needing to wash it. The wool fabric makes this base layer odor-resistant and stink-free. What more could you ask for? Layering is a tried and true art that has stood the test of time – and that’s because it works! Top performance in cold weather that can reach sub-zero temps requires having the right layers and knowing how to use them – the first being your base layer.You’ll find this base layer to be a reliable, multi-use article of clothing that you’ll be happy to have in your wardrobe. For its quality, it’s great value for the money if you’re looking for a budget merino wool base layer. This year, we've seen looks come and go on the runway. From New York to Milan, our fashion sense of style is often inspired by what we see in the latest designer collections. One thing that could not possibly ever go out of style is layering. In fact, this year, layering has been a huge trend thanks to the likes of Balenciaga and Gucci. So, if you're wondering how to perfect the layering look, see below our handy guide: What Is Layering And Why Do It? I love the slim fit and how lightweight they are. There’s no restriction in movement, and they give you the perfect amount of snugness – so comfy. They feel great under shell ski pants, softshell pants, or even regular clothing. We all know what a pain it can be to do laundry while traveling, so you’ll appreciate the Capilene base layer’s HeiQ fresh odor control. So basically, less washing with no added stench. It’s a win-win. It’s the best base layer for women because it’s also versatile; it can easily be used as thermal underwear for extra warmth or on its own as comfy, practical performance gear. Smartwool Merino fabric adjusts to your body temperature, so you don’t have to worry about overheating either.

Pair these leggings with the Oasis crew top, and you’ve got yourself one awesome set of top-notch long johns. Not only will these keep you warm, but you can count on no-itch, breathable comfort every time. There’s so much to see and do in chilly conditions. From countless activities – like skiing and hiking – to the incredible colder-climate destinations there are to discover – like Scandinavia and Patagonia; you can enjoy them all by simply having the right thermal wear for top comfort and performance.There are a variety of different materials available when it comes to base layers. The most common are synthetic fabrics – like If you want to have just one go-to, year-round base layer, then the Smartwool Merino 150 is the way to go. It’s lightweight with the temperature control versatility of merino wool, making it ideal for the not-so-extreme cold – like for spring skiing. For hiking to the summit of Mount Kilimanjaro, a 150 won’t give you enough warmth. Whereas for moderately chilly autumn morning runs, a 250 would be overkill.

This base layer is so warm and comfy; I’ve been using this one for years and love it. I’ve never had to deal with chafing because it’s functionally designed with flat stitching and offset shoulder seams. Which underwear weight you need will depend mostly on your typical level of activity, the conditions you’ll be in, and your metabolism. If you tend to run cold, a heavier weight will work better for you.Speaking of sweat, this heavyweight base layer is amazing at keeping you odor-free. You can go days without washing it and still have a fresh base layer to put on as often as needed. It’s a clear winner. For hiking it hot conditions at lower elevations, my Smartwool Merino 150 Crew is my go-to. When I am camping above 4,000 meters and need something to keep me insulated from the morning/evening cold – it is a 250 layer all the way. Insulation and Weight looking for cheap base layers? The best mens base layers? Heavyweight, lightweight, top, bottoms etc etc… we’ve got it all! On the flip side, nylon and polyester’s weakness is odor resistance. Some synthetic garments are treated with an antimicrobial finish to limit the growth of odor-causing bacteria, but otherwise, they require frequent washing to eliminate the stink. Merino Wool: