When conquering the great outdoors, the right base layer can make all the difference. Smartwool, the Denver-based brand known for comfy thermals, socks and accessories, has upped the ante for active adventure wear with its new Intraknit line. Featuring three versatile collections – the Thermal Merino, Thermal Max Merino and Active Base Layer – the Intraknit line is designed with performance in mind to move with you while keeping you warm, dry and comfortable.
Smartwool’s secret lies in the combination of Merino wool, the moisture-wicking fabric that both warms you in frigid temps and cools on hot days, and a new 3D-knitting technique that delivers targeted insulation and breathability where you need it, resulting in a seamless, body-hugging fit for freer mobility. Whether you’re layering up for a frosty hike or heading out for a run in fluctuating temps, the new base layers are ideal for active and outdoors adventurers.
Available in stylish designs, earthy hues and practical patterns, Intraknit tops and bottoms aren’t just base layers; they can also be sleek, stand-alone essentials that perform as great as they look and feel.
Intraknit thermals cover your bases, no matter the weather
Smartwool’s line of IntraKnit thermal base layers include three performance categories with premium tops and bottoms – even briefs and bras – depending on your insulation needs and activity. Whether you’re layering up for cold-weather camping, carving through fresh powder on the slopes, or enjoying a crisp morning hike, these base layers appear to provide a solution for every activity level and insulation need.
And for those less adventurous days? The versatile pieces are stylish enough to double as chic stand-alone outfits, perfect for post-hike coffee runs, cozy après-ski moments or even a casual brunch when you want to stay warm without sacrificing style.
Not your grandmother’s itchy sweater
At the foundation of IntraKnit is high-quality Merino wool, which has fine fibers that are softer, more durable and more breathable than traditional wool. Naturally thermoregulating, Merino keeps you warm in cold weather without adding bulk, while its moisture-wicking and odor-resistant properties keep you dry and fresh during high-intensity activities.
Wool is exceptionally lightweight, making it the go-to choice for hikers and athletes alike. It’s also more sustainable than factory-produced synthetic fabrics, which aligns with Smartwool’s commitment to reducing landfill waste. That’s partly because it’s durable and long-lasting: Today’s Merino can survive countless wears and washes without shrinking.
Intraknit 3D body mapping
Smartwool’s IntraKnit pieces are uniquely designed with 3D body mapping to create seamless garments. The knitting technique uses anatomical mapping that follows the human body’s natural curves and temperature-sensitive areas for a more tailored, comfortable fit than base layers made from sewn-together panels of fabric.
As each garment is made, machines map the areas where more insulation, ventilation and movement are typically needed, making for a garment that helps regulate body temperature and support more mobility. The result is a chafe-free, premium piece that empowers performance so you can embrace every outing or activity with ease.
Intraknit Thermal Merino: versatile cold-weather performance
For cold-weather pursuits where you need reliable performance, the Intraknit Thermal Merino line offers a balance of warmth, flexibility and breathability. For those wanting a versatile set for snowshoeing through backcountry trails or tackling a morning jog in frosty conditions, Smartwool employs medium-weight Merino wool yarn, polyester and the 3D body-mapped construction for strategic ventilation and targeted fit to keep you comfortable and dry.
Smartwool has added ribbed elbows to enhance durability for rough and tumble activities like cross-country skiing, while gender-specific mesh ventilation zones prevent overheating during more strenuous climbs. Weighing in at under half a pound, this insulated layer provides lightweight comfort for unpredictable conditions in a variety of colorways.
Intraknit Thermal Max Merino: built for the coldest adventures
When extreme cold is part of the plan, Smartwool’s Intraknit Thermal Max Merino base layer has the insulation and breathability you need for maximum warmth. As the name suggests, Max garments are made to excel on frigid mountain summits and long days in sub-freezing temps. Insulating terry loops are seamlessly integrated to trap body heat where you need it most, while gender-specific mesh ventilation ensures breathability during high-output activities like snowboarding or alpine trekking.
Thoughtful additions such as reflective elements, functional zippers and built-in gaiter mask hoodies make these layers ideal for early morning starts or nighttime descents when visibility matters. Designed for temperatures of 25°F and below, this base layer system is ideal for adventurers facing the coldest conditions without compromising mobility or comfort.
Intraknit Active Base Layer: dynamic comfort for high-output activities
Intraknit Active Base Layers are for high-energy pursuits in which breathability and flexibility are key. Whether you’re trail running, climbing steep switchbacks or engaging in intense ski touring, these base layers keep up with your pace, wicking moisture and regulating temperature to keep you cool and dry.
The garments use Tencel Lyocell, derived from sustainably sourced wood fibers, which add enhanced softness and cooling properties that complement Merino wool’s odor resistance and natural thermoregulation. Smartwool’s design prevents chafing and overheating during the sweatiest, most dynamic workouts in temperatures ranging from 25°F to 40°F.
Layer up with Smartwool
Right now, you can stock up on Intraknit at Smartwool.com, where guaranteed free 3-day shipping and hassle-free returns make shopping swift and stress-free, or check them out in person at trusted retailers like Backcountry and REI.
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