Skip to content
Heatwave Base Layer Super Warm Super Dry and Super Comfortable text on left with two men and two women models on right wearing Seirus base layer sets

Base Layer - Workwear

Base Layer - Workwear

17 products

Coreshield™ Storm Layer Jacket

Coreshield™ Storm Layer Jacket


Mens Heatwave™ Performance Base Layer Crew Top

Mens Heatwave™ Performance Base Layer Crew Top


Women's Heatwave™ Performance Base Layer 1-4 Zip Crew Top

Women's Heatwave™ Performance Base Layer 1-4 Zip Crew Top


Men's Heatwave™ Performance Base Layer Bottom

Men's Heatwave™ Performance Base Layer Bottom


Women's Heatwave Performance Base Layer Bottom

Women's Heatwave Performance Base Layer Bottom


Men's Heatwave™ Winter Weight Base Layer Crew Top

Men's Heatwave™ Winter Weight Base Layer Crew Top


Women's Heatwave™ Winter Weight Base Layer Crew Top

Women's Heatwave™ Winter Weight Base Layer Crew Top


Men's Heatwave™ Winter Weight Base Layer Bottom

Men's Heatwave™ Winter Weight Base Layer Bottom


Women's Heatwave™ Winter Weight Base Layer Bottoms

Women's Heatwave™ Winter Weight Base Layer Bottoms


Women's Heatwave™ All Season Base Layer Top

Women's Heatwave™ All Season Base Layer Top


Men's Heatwave™ All Season Base Layer Crew Top

Men's Heatwave™ All Season Base Layer Crew Top


Women's Heatwave™ All Season Base Layer Bottoms

Women's Heatwave™ All Season Base Layer Bottoms


Men's Heatwave™ All Season Base Layer Bottoms

Men's Heatwave™ All Season Base Layer Bottoms


Mens Heatwave™ Performance Base Layer ¼ Zip Mock Neck Top

Mens Heatwave™ Performance Base Layer ¼ Zip Mock Neck Top


Women's Heatwave™ Performance Base Layer ¼ Zip Mock Neck Top

Women's Heatwave™ Performance Base Layer ¼ Zip Mock Neck Top


Mens Heatwave™ Performance Base Layer Quick Hoodie Top

Mens Heatwave™ Performance Base Layer Quick Hoodie Top


Womens Heatwave™ Performance Base Layer Quick Hoodie Top

Womens Heatwave™ Performance Base Layer Quick Hoodie Top


Back to top

Added to cart