Kids' and baby base layers

Kids and baby base layers for cozy winter warmth

Kids and baby base layers are the unsung heroes of outdoor adventure. Whether they’re building snow forts, exploring local trails or joining you on ski days, the right base layers keep them warm and comfortable. Essential pieces like thermal leggings, tops and socks help insulate and wick away moisture, so little ones stay cozy no matter the conditions. At MEC, you'll find a wide selection of kids and baby base layers both in-store and online from trusted brands like MEC Label, Patagonia, KOMBI and more.

Merino wool vs. synthetic

Choosing the right base layers depends on activity level and weather conditions. Merino wool is a favourite for its soft feel, breathability and natural odor resistance. It’s an excellent choice for everyday winter wear, sledding adventures or ski trips. With its ability to regulate body temperature and resist odors, merino wool keeps kids warm without overheating. Synthetic kids' base layers, typically made from performance polyester or polypropylene, excel in durability and moisture-wicking properties. These layers are lightweight, quick-drying and budget-friendly, making them ideal for high-energy activities like tobogganing, cross-country skiing or winter sports camps. Synthetic options help manage sweat and keep kids dry, ensuring they stay comfortable throughout the day. For the best of both worlds, hybrid merino-synthetic base layers combine the warmth and temperature regulation of wool with the durability and quick-drying performance of synthetics. These versatile options are perfect for kids tackling a variety of winter activities.

Perfect your little one’s layering system

A base layer is the foundation of warmth, but it works best as part of a complete layering system. Once you’ve chosen a base layer, add a mid-layer for insulation and an outer layer for protection. Mid-layers, such as fleece or insulated jackets, help trap heat while allowing moisture to escape. Outer layers, like waterproof or windproof shells, shield against snow, rain and icy winds. A well-thought-out layering system helps regulate body temperature and keeps kids dry and warm in changing weather conditions. Need help finding the perfect fit? Stop by your local MEC and chat with our expert staff—they’re always happy to offer advice and help outfit your little adventurers for the season.