Base Layer Tops

Our most versatile year-round fabric features a nylon core for durability, while keeping soft 100% Merino wool next to skin.

Men's Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest base layer tops and best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help minimize chafing as well as help keep you comfortable and temperature-regulated as you enjoy high-intensity skiing, hiking, running, and more.

Meet the better-than-ever Men's Classic Thermal Merino Base Layer Crew. We've updated this 100% Merino wool fan-favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder panels eliminate top shoulder seams and a flatlock seam construction helps prevent chafing. Add one of our best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing, or biking. Features: - Slim Fit - 100% Merino wool fabric made with an interlock knit for enhanced comfort, breathability, thermoregulation, and odor resistance - Fit updated to improve functionality while enhancing aesthetics - Shoulder panels eliminate top shoulder seams - Flatlock seam construction designed to minimize chafing - Knit in Vietnam: 100% Merino Wool - Garment Weight: 276 g = 9.74 oz

Meet the better-than-ever Men's Classic Thermal Merino Base Layer Crew. We've updated this 100% Merino wool fan favorite with new colors and a new fit to improve functionality while enhancing aesthetics. Shoulder panels eliminate top shoulder seams, and a flatlock seam construction helps prevent chafing. Add one of our best base layers for cold weather to your winter wardrobe and experience the difference the next time you go skiing, hiking, climbing, or biking.

We've updated the fit of our Women's Classic Thermal Merino Base Layer 1/4 Zip to improve functionality while also enhancing aesthetics. As one of our heaviest base layer tops and one of our best base layers for cold weather, this garment uses 100% responsibly sourced Merino wool, shoulder panels, and a flatlock seam construction to help prevent chafing as well as keep you comfortable and temperature regulated as you enjoy high-intensity skiing, hiking, running, and more.

Active Extreme X CN LS is a long-sleeve baselayer jersey designed for racing and high-intensity workouts in mild to cold winter conditions. This high-performance garment combines lightweight SEAQUAL polyester, Coolmax Air Technology and recycled polyester to provide exceptional body-temperature management during high-intensity activities. In addition, the garment comes with a waffle-knitted design for enhanced moisture transport and comfort. Great stretch and ergonomic fit ensure optimal freedom of movement while bodymapped mesh panels provide extra ventilation where it's needed the most. A proven favorite among elite athletes and everyday heroes. SEAQUAL eco-friendly fabric - The SEAQUAL Initiative challenges plastic pollution and helps to clean our oceans from marine litter, driving society towards circularity. A result of our ambition to take full responsibility for the entire value chain, Active Extreme X CN LS is made of upcycled marine plastics, a 100% recycled material. The recycled SEAQUAL fabric is not only eco-friendly but offers exceptional moisture transport and ventilation as well. Coolmax Air Technology - Coolmax Air Technology fabrics are designed to optimize the body's natural temperature management in cold as well as warm conditions. Featuring polyester fibers with a unique propeller-shaped cross-section, the fabric provides excellent thermoregulation for optimal performance. Tests have shown that garments made with the Coolmax Air Technology offer superior body-temperature management, great comfort and superb quick-dry effect. - Thin, lightweight and elastic fabric - SEAQUAL polyester produced from recycled plastic - Coolmax Air Technology - Waffle-knitted design for maximum moisture transport and comfort - Mesh inserts at armpits for enhanced ventilation - Flatlock seams that follow body movements - Tight fit - Moisture transport: 5 out of 5 - Activity level: 5 out of 5 - Temperature: -5 C to +10 C

Soft and functional long-sleeve jersey with few seams and bodymapped structure for enhanced thermoregulation. Recycled fabrics. - Regular fit - Seamless design for optimal freedom of movement - Flatlock seams that follow body movements

Soft and functional long-sleeve jersey with few seams and bodymapped structure for enhanced thermoregulation. Recycled fabrics. - Regular fit - Seamless design for optimal freedom of movement - Flatlock seams that follow body movements

Soft and functional half-zip tee with few seams and bodymapped structure for enhanced thermoregulation. Recycled fabrics. - Regular fit - Seamless design for optimal freedom of movement - Flatlock seams that follow body movements

Functional baselayer jersey and pants made of soft, channel-knit fabric designed for all kinds of winter activities. - Regular fit - Channel-knitted fabric for optimal moisture transport - Flatlock seams that follow body movements

This soft, junior-sized baselayer set combines comfort with ventilation and modern style. Its channel-knitted fabric design allows for efficient moisture transport while flatlock seams let clothes follow your body movements. - Channel-knitted fabric for optimal moisture transport - Flatlock seams follow body movements - Regular fit - Color-blocked design stands out from the crowd - SIZE: 74/80-158/164 - FABRIC: 100% Polyester Recycled

Active Extreme X CN LS is a long-sleeve baselayer jersey designed for racing and high-intensity workouts in mild to cold winter conditions. This high-performance garment combines lightweight SEAQUAL polyester, Coolmax Air Technology and recycled polyester to provide exceptional body-temperature management during high-intensity activities. In addition, the garment comes with a waffle-knitted design for enhanced moisture transport and comfort. Great stretch and ergonomic fit ensure optimal freedom of movement while bodymapped mesh panels provide extra ventilation where it's needed the most. A proven favorite among elite athletes and everyday heroes. SEAQUAL eco-friendly fabric The SEAQUAL Initiative challenges plastic pollution and helps to clean our oceans from marine litter, driving society towards circularity. A result of our ambition to take full responsibility for the entire value chain, Active Extreme X CN LS is made of upcycled marine plastics, a 100% recycled material. The recycled SEAQUAL fabric is not only eco-friendly but offers exceptional moisture transport and ventilation as well. Coolmax Air Technology Coolmax Air Technology fabrics are designed to optimize the body's natural temperature management in cold as well as warm conditions. Featuring polyester fibers with a unique propeller-shaped cross-section, the fabric provides excellent thermoregulation for optimal performance. Tests have shown that garments made with the Coolmax Air Technology offer superior body-temperature management, great comfort and superb quick-dry effect. - Thin, lightweight and elastic fabric - SEAQUAL polyester produced from recycled plastic - Coolmax Air Technology - Waffle-knitted design for maximum moisture transport and comfort - Mesh inserts at armpits for enhanced ventilation - Flatlock seams that follow body movements - Tight fit - Moisture transport: 5 out of 5 - Activity level: 5 out of 5 - Temperature: -5 C to +10 C