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Summit+ exclusive
Climate Long-Sleeve Shirt - Men's
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The Climate Long-Sleeve Shirt regulates heat mile after mile
The Climate Long-Sleeve Shirt uses On ThermaTec™ construction and a woven, multidimensional fabric surface to hold warmth on cold runs while still wicking sweat as effort builds. A quarter-zip front vents heat on demand, and spiral dart elbow seams with a contoured back seam let the shirt move through a full stride without binding.
What Our Gearhead® Experts Are Saying:
"I started a 20-degree morning run fully zipped and never felt the chill that usually has me turning back early. By mile four I'd dropped the zipper halfway and stayed comfortable instead of overheating like I would in a heavier layer."
Details
- Long-sleeve midlayer shirt for cold-weather running
- Quarter-zip vents heat without stopping to change layers
- Thumbholes add coverage across the back of the hand
- Reflective details improve visibility in low light
- Side zip pocket holds small essentials securely
- Recycled polyester main fabric cuts down on virgin plastic
- Item #ONFB0LX
- Material
- [face fabric] 94% polyester, 6% elastane, [placket] 86% nylon, 14% elastane
- Fit
- slim
- Style
- 1/4-zip mock-neck
- Pockets
- 1 zippered right
- Reflective
- details
- Manufacturer Warranty
- limited
- Activity
- running
Related Categories
Frequently Asked Questions
How does the On Climate Long Sleeve Shirt - Men's perform on cool-weather runs?
At 203g, the On Climate is a lightweight midlayer for active use. Its 3D waffle construction is designed to absorb moisture, wick sweat, and dry quickly during changing effort levels.How should I choose a size in the On Climate Long Sleeve Shirt - Men's?
The shirt is listed as regular fit and true to size. Use chest measurements to choose: the M range is 38.2–40.2, while L is 40.6–42.5; choose the larger size if you want more room for layering.What is the On Climate Long Sleeve Shirt - Men's made from?
The main fabric is 100% recycled polyester, and the garment weighs 203g. Four-way stretch supports movement, while the textured fabric is designed to manage sweat.Which details make the On Climate Long Sleeve Shirt - Men's practical for training?
The quarter-zip lets you adjust ventilation, and built-in thumbholes add hand coverage. It also has watch windows and a discreet side zip pocket for essentials.Can I wear the On Climate Long Sleeve Shirt - Men's as an outer layer in rain or snow?
The 203g shirt is best used as a breathable thermal midlayer, not as rain or snow protection; no waterproof rating is listed. Wear it under a weather-resistant shell when conditions are wet.









