Base layers
- (21)Arc'teryx Rho Hoody - Women's$140.00
- (1)Arc'teryx Rho LT Bottoms - Men's$120.00
- (0)Arc'teryx Rho Bottoms - Women's$120.00
- (1)MEC T3 Warmest Base Layer 1/4 Zip Long Sleeve Top - Women's$89.95
- (1)MEC T3 Base Layer 1/4 Zip Long Sleeve Top - Men's$79.95
- (4)MEC T2 Merino Base Layer Bottoms - Men's$109.95
- (1)MEC T2 Merino Base Layer 1/4 Zip Long Sleeve Top - Women's$119.95
- (8)MEC T2 Merino Base Layer Long Sleeve Top - Men's$109.95
- (35)icebreaker 200 Oasis LS Half Zip - Men's$97.94$139.95
- (495)Smartwool Classic Thermal Merino Base Layer Bottom - Women's$139.95
- (0)Kombi RedHeat Pro Grid Mock Top - Men's$99.95
- (0)Kombi MerinoMix Active Long Bottom - Women's$74.95
- (0)Kari Traa Rose Capri High Waist Pants - Women's$129.95
- (0)Kombi MerinoMix Pro Long Bottom - Women's$84.95
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How to choose base layers
Learn about thermal warmth rating systems, merino vs. synthetic and more.
- (0)Smartwool Intraknit Thermal Merino Base Layer 3/4 Bottom - Men's$149.95
- (0)Kari Traa Smekker Half-Zip Baselayer Top - Women's$169.95
- (3)Kari Traa Smekker Long Sleeve Crew - Women's$159.95
- (0)Kombi RedHeat Pro Grid Crew Top - Men's$89.95
- (0)Kombi RedHeat Pro Grid Mock Top - Women's$99.95
- (0)Kombi MerinoMix Active Long Bottom - Men's$74.95
- (0)Smartwool Intraknit Thermal Merino Base Layer Colorblock Crew - Men's$169.95
- (0)Kari Traa Smekker High Waist Pants - Women's$159.95
- (0)Smartwool Classic All-Season Merino Base Layer Crew - Women's$119.95
- (1)Smartwool Intraknit Thermal Merino Base Layer Bottoms - Women's$149.95
- (0)Kari Traa Isabel Tights - Women's$119.95
- (0)Kari Traa Silja 2.0 Pants - Women's$139.95
- (50)icebreaker Merino 260 Tech Leggings with Fly - Men's$149.95
- (128)icebreaker Merino 260 Tech Long Sleeve Half Zip - Men's$159.95
- (0)Kombi RedHeat Pro Grid Long Bottom - Men's$89.95
- (4)Smartwool Classic Thermal Merino Base Layer Crew - Men's$139.95
- (1)Kombi Merino Mix Active Crew Top - Men's$74.95
- (6)MEC T3 Merino Base Layer Bottoms - Men's$119.95
- (3)Kari Traa Rose Half Zip Top - Women's$159.95
- (0)Smartwool Classic Thermal Merino Base Layer 1/4 Zip - Women's$149.95
- (0)Kari Traa Silja 2.0 Half Zip - Women's$149.95
- (4)Kari Traa Rose High Waist Pants - Women's$149.95
- (0)Kombi MerinoMix Active Crew Top - Women's$74.95
- (0)Kombi RedHEAT Active Zip Top - Women's$79.95
- (0)Craft Active Intensity Pants - Men's$59.95
- (0)Kari Traa Alma Half Zip - Women's$139.95
- (0)Kombi MerinoMix Pro Zip Top - Women's$94.95
- (0)Smartwool Classic Thermal Merino Base Layer 1/4 Zip - Men's$149.95
- (53)icebreaker Merino 260 Tech Long Sleeve Crewe - Men's$149.95
- (4)Kari Traa Rose Long Sleeve Top - Women's$149.95
- (0)Smartwool Intraknit Thermal Merino Base Layer Hoodie - Men's$209.95
- (0)Smartwool Intraknit Thermal Merino Base Layer Crew - Women's$159.95
- (0)Kombi RedHeat Pro Grid Long Bottom - Women's$89.95
- (0)Craft Active Extreme X CN Long Sleeve - Men's$89.95
- (0)Kari Traa Katie Pants - Women's$89.95
- (4)Arc'teryx Rho Crew Neck Long Sleeve - Women's$120.00
- (0)Craft Active Intensity CN Long Sleeve - Men's$69.95
- (0)Kombi MerinoMix Pro Zip Top - Men's$94.95
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Base layers for ultimate winter warmth
Base layers are the unsung heroes of outdoor adventure. Whether you’re strolling through local trails, staying cozy at home or carving turns on the slopes, base layers provide the foundation for warmth and comfort. Essential items like thermal leggings, tops, and socks ensure that you stay insulated and dry throughout the day, no matter the conditions. MEC hosts entire collections of warm base layers in-store or online, made by beloved brands like MEC Label, Smartwool, KOMBI and more.
Merino Wool vs. Synthetic Base Layers
Knowing how to choose base layers depends on your activity level and environment. Merino wool is loved for its soft texture, breathability and natural antimicrobial properties. It’s a perfect choice for activities with lower sweat levels, such as camping trips, chill hikes or downhill skiing. Merino wool regulates body temperature and resists odor, making it a reliable option.
Synthetic base layers, often made from high-performance polyester or polypropylene, excel in durability and moisture-wicking capabilities. Lightweight and quick-drying, these layers are budget-friendly and ideal for high-intensity activities like trail running, mountain biking and cross-country skiing. For those who push their limits, synthetic layers keep sweat at bay and ensure consistent comfort.
If you’re looking for the best of both worlds, hybrid merino-synthetic base layers blend the temperature regulation of wool with the durability and performance of synthetics. These versatile options are a great choice for adventurers with multiple activities on the go.
Building a layering system
Your base layer sets the stage, but it works best as part of a complete layering system. After selecting your base layer, add a mid-layer for insulation and an outer layer for protection. Mid-layers, such as fleece or insulated jackets, trap body heat while allowing moisture to escape. Outer layers, often waterproof or windproof, shield you from the elements, ensuring you’re ready for rain, snow, or brisk winds. For ever-changing weather conditions or extended adventures, mastering the art of layering is key. A well-chosen base layer not only enhances your outdoor comfort but also boosts performance by regulating temperature and managing moisture effectively. Any questions? Feel free to drop by your local MEC to meet our expert team of staffers who will be more than happy to lend their own advice.



















































