Your running performance seem to be at its peak every autumn, when summer heat give way to cool, cripsy weather. But as the mercury keeps dropping, there's no greater way to test your commitment than getting out the door for a chilly run. Stay motivated with our Smooth Wool Long Sleeve shirt. The wavy structure (crimp) of wool fibers trap a lot of air, creating an insulating layer to protect you from the cold so you can keep the mileage going.

• Incredibly smooth touch

  All your running friends rave about wool but still not convinced? How a wool fabric feels can vary dramatically depending on the fiber diameter. Using the finest 17.5-micron yarn and interlock knit, our Smooth Wool shirts feel smooth and almost like silk on your skin. Once you try our wool, you'll never go back.

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• Less laundry, more eco-friendly

  Wool is amazing for its odor resistance. That means your wool garments need less frequent washing, reducing your water and energy consumption. With less need for laundry, wool also enables you to pack light for traveling.

• Why non-mulesed merino wool?

  New Zealand has decided to ban mulesing (the process of removing skin from sheep buttocks), and the wool we use is 100% sourced from Merino sheep in New Zealand. We believe that wool is a gift from sheep, and we should not support any practices that cause in their suffering. As a brand promoting the benefits of wool, we are committed to advocating for animal welfare.