BASE LAYER
Cold weather base layers are essential for warmth and comfort. Our Heatwave Technology amplifies and retains radiating warmth, maximizing your cold-weather comfort. From mountain peaks to city streets, this versatile innovation ensures you begin your journey feeling warm and remain that way all the way through.
Seirus
Women's Heatwave™ Body Mapped Base Layer Long Sleeve 1-4 Zip Top
$134.99
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Seirus
Mens Heatwave™ Body Mapped Base Layer Long Sleeve Top
$129.99
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Seirus
Women's Heatwave Mapped Full Length Bottom
$119.99
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Seirus
Women's Heatwave™ Winter Weight Long Sleeve Crew Top
$99.99
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Seirus
Men's Heatwave™ Winter Weight Long Sleeve Crew Top
$99.99
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Seirus
Women's Heatwave™ Winter Weight Full Length Bottom
$89.99
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Seirus
Men's Heatwave™ Winter Weight Full Length Bottom
$89.99
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Seirus
Women's Heatwave™ All Season Long Sleeve Top
$79.99
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Seirus
Women's Heatwave™ All Season Full Length Bottom
$74.99
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Seirus
Mens Heatwave™ Body Mapped Base Layer Quick Hoodie Top
$134.99
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Seirus
Womens Heatwave™ Body Mapped Base Layer Quick Hoodie Top
$134.99
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The Ultimate Warm Base Layer Tops & Bottoms
If you’re shopping for cold weather base layers, you came to the right place. We pour our hearts into our products to ensure our customers have the best outdoor experience.
What Seirus Is Known For:
Innovation: With a remarkable legacy dating to 1978, we've earned over 20 patents, highlighting our commitment to innovative outdoor gear. We consistently push boundaries by using the latest fabrics, advanced technologies, and a unique R&D process. This blend of innovation and dedication yields dependable, high-performance gear.
Quality:
Our products are celebrated for exceptional durability, a key element in crafting gear for a wide range of outdoor conditions, spanning freezing winters to scorching summers. We depend on real-life feedback from trusted partners and customers to ensure our gear consistently delivers comfort and protection.
Comfort: No matter the season, we all venture outdoors. Whether it's skiing, snowboarding, hunting, camping, fishing, or simply exploring nature, we're out there. Whatever draws you outdoors, staying warm and comfortable is key. Our gear is designed to envelop you in warmth and protection from head to toe. We're not talking about just enough warmth to tough it out, we're talking about seriously, pleasantly warm.
Integrity: We’re a dedicated team of co-creators committed to crafting practical outdoor solutions through hands-on research and development. Our approach is grounded in real-world functionality, always prioritizing solutions for genuine outdoor needs.
Trust in our commitment to excellence, and embark on your outdoor adventure with Seirus today!
Our Base Layers come in a variety of sizes and features, check out our Heatwave Body Mapped Base Layer, All Season Base Layer, or our Heatwave Winter Weight Base Layer. They’re a trusted choice — just see how much our customers love them!
If you have any questions as you browse the Seirus Innovation store, reach out to our customer care team.
Base Layer FAQs
Are base layers different than thermals?
Open tabWhat Base Layers are great for extremely cold weather?
Open tabShould base layers be tight or loose?
Open tabWhat cold weather base layers do I need?
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