Tracksmith Womens Session Long Sleeve Tee - Windsurfer - AW25
A performance top for cooler conditions, reimagined in a heavier Merino knit with 37.5® Technology to optimize temperature regulation.
Even More Hardy Harriers
For more than a decade we’ve pioneered the use of Merino wool in high-performance running apparel, leveraging its natural ability to regulate temperature and resist odor for countless miles. It’s a key component in our longstanding Harrier Long Sleeve, an enduring element even as we’ve refined the style over the years. Our latest edition features an updated silhouette with thumbholes for comfort and coverage. Cut from a heavier knit blend and powered by 37.5® Technology, it pairs innovative thermoregulation with Merino’s innate odor resistance for a technical top that breathes easy and bears the chill.
Specs and Features:
- Designed for running in cool to cold conditions
- Made in a Merino wool blend
- Thermoregulation powered by 37.5® Technology
- Finished with a thumbhole on the inside seam of each cuff
- Reimagined relaxed silhouette with raglan sleeves
Product Information
Product Information
Shipping & Returns
Shipping & Returns

Tracksmith Womens Session Long Sleeve Tee - Windsurfer - AW25
Tracksmith Womens Session Long Sleeve Tee - Windsurfer - AW25
A performance top for cooler conditions, reimagined in a heavier Merino knit with 37.5® Technology to optimize temperature regulation.
Even More Hardy Harriers
For more than a decade we’ve pioneered the use of Merino wool in high-performance running apparel, leveraging its natural ability to regulate temperature and resist odor for countless miles. It’s a key component in our longstanding Harrier Long Sleeve, an enduring element even as we’ve refined the style over the years. Our latest edition features an updated silhouette with thumbholes for comfort and coverage. Cut from a heavier knit blend and powered by 37.5® Technology, it pairs innovative thermoregulation with Merino’s innate odor resistance for a technical top that breathes easy and bears the chill.
Specs and Features:
- Designed for running in cool to cold conditions
- Made in a Merino wool blend
- Thermoregulation powered by 37.5® Technology
- Finished with a thumbhole on the inside seam of each cuff
- Reimagined relaxed silhouette with raglan sleeves
Original: $103.55
-70%$103.55
$31.06Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
A performance top for cooler conditions, reimagined in a heavier Merino knit with 37.5® Technology to optimize temperature regulation.
Even More Hardy Harriers
For more than a decade we’ve pioneered the use of Merino wool in high-performance running apparel, leveraging its natural ability to regulate temperature and resist odor for countless miles. It’s a key component in our longstanding Harrier Long Sleeve, an enduring element even as we’ve refined the style over the years. Our latest edition features an updated silhouette with thumbholes for comfort and coverage. Cut from a heavier knit blend and powered by 37.5® Technology, it pairs innovative thermoregulation with Merino’s innate odor resistance for a technical top that breathes easy and bears the chill.
Specs and Features:
- Designed for running in cool to cold conditions
- Made in a Merino wool blend
- Thermoregulation powered by 37.5® Technology
- Finished with a thumbhole on the inside seam of each cuff
- Reimagined relaxed silhouette with raglan sleeves














