Men's Base Layer Long sleeve tops

A midweight performance baselayer top designed for cold, low- to medium-intensity pursuits using our OTW® Omega Twist Spinning Technology, the MerinoFine™ Ace Long Sleeve Half Zip features MerinoFine™ wool fibres that provides versatile comfort, efficiently managing moisture, drying quickly, naturally resisting odours, regulating temperature, and maintaining breathability.

A lightweight, go-anywhere performance tee designed for high-intensity movement using OTW® Omega Twist Spinning Technology, the MerinoFine™ Ace Long Sleeve Crew provides versatile comfort, efficiently managing moisture, drying quickly, naturally resisting odours, regulating temperature, and maintaining breathability

A lightweight, go-anywhere performance tee designed for high-intensity movement using OTW® Omega Twist Spinning Technology, the MerinoFine™ Ace Long Sleeve Crew provides versatile comfort, efficiently managing moisture, drying quickly, naturally resisting odours, regulating temperature, and maintaining breathability

A midweight performance baselayer top designed for cold, low- to medium-intensity pursuits using our OTW® Omega Twist Spinning Technology, the MerinoFine™ Ace Long Sleeve Half Zip features MerinoFine™ wool fibres that provides versatile comfort, efficiently managing moisture, drying quickly, naturally resisting odours, regulating temperature, and maintaining breathability.

A heavyweight merino wool base layer top designed for the coldest of days, the 300 MerinoFine™ Polar Long Sleeve Half Zip features premium 15.5-micron icebreaker merino wool that offers refined softness while efficiently managing moisture, drying quickly, providing natural odour resistance, and delivering breathable comfort.

A heavyweight merino wool base layer top designed for the coldest of days, the 300 MerinoFine™ Polar Long Sleeve Half Zip features premium 15.5-micron icebreaker merino wool that offers refined softness while efficiently managing moisture, drying quickly, providing natural odour resistance, and delivering breathable comfort.

A heavyweight merino wool base layer top designed to keep you warm and comfortable on the coldest of days, the 300 MerinoFine™ Polar Long Sleeve Half Zip features our premium, luxuriously soft ultra-fine merino fibres that are incredibly soft next to skin.

A heavyweight merino wool base layer top designed for the coldest of days, the 300 MerinoFine™ Polar Long Sleeve Half Zip features premium 15.5-micron icebreaker merino wool that offers refined softness while efficiently managing moisture, drying quickly, providing natural odour resistance, and delivering breathable comfort.

A heavyweight merino wool base layer top designed to keep you warm and comfortable on the coldest of days, the 300 MerinoFine™ Polar Long Sleeve Roll Neck features our premium, luxuriously soft ultra-fine merino fibres that are incredibly soft next to skin.

A versatile base layer shirt perfect for everyday comfort and year-round layering performance, the Merino 175 Everyday Long Sleeve Crew features 100% merino wool rib fabric that’s soft, breathable, and naturally odour-resistant.

A classic, all-purpose base layer T-shirt made with soft and breathable 100% merino wool fabric, the 175 Everyday Long Sleeve Crewe is as versatile as it is comfortable.

The Merino 175 Everyday Long Sleeve Half Zip is a classic, all-purpose base layer made with soft and breathable 100% merino wool rib-knit fabric.

A classic, all-purpose base layer T-shirt made with soft and breathable 100% merino wool fabric, the 175 Everyday Short Sleeve Crewe is as versatile as it is comfortable.

Setting the standard for all others to follow, the 200 Oasis Long Sleeve Crew is icebreaker's best-selling base layer—a versatile active top for year-round layering and everyday comfort.

Setting the standard for all others to follow, the 200 Oasis Long Sleeve Crew is icebreaker's best-selling base layer—a versatile active top for year-round layering and everyday comfort.

As the official base layer of Ikon Pass we have teamed up with Ikon to create an exclusive product with artwork by Kika MacFarlane. Our versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Long Sleeve Crewe is our best-selling base layer top. Setting the standard...

Our versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Long Sleeve Crewe is our best-selling base layer top.

Our versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Long Sleeve Crewe is our best-selling base layer top.

Our versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Long Sleeve Crewe is our best-selling base layer top.

Our versatile, go-anywhere shirt made from breathable 100% merino wool jersey, the 200 Oasis Long Sleeve Crewe is our best-selling base layer top.