Original: $55.00
-70%$55.00
$16.50The Story
The Radius Quarter Zip is built for versatility—layer it under a men’s windbreaker or wear it solo during cool-weather training. Made with microfleece fabric and stretch materials, it’s a high-performance training top that balances insulation, mobility, and breathability.
- Microfleece main body for lightweight warmth
- 4-way stretch chest panel with secure zip pocket
- 1/4 front zip with reflective bungee pull
- Cuffed sleeves with elastic binding for comfort
- Reflective Trailberg branding at chest
Perfect for layering or standalone use, the Radius is a long sleeve running top made to support outdoor movement. Whether you're on the trail or warming up, it delivers gym jacket men function in a streamlined quarter zip fit.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
The Radius Quarter Zip is built for versatility—layer it under a men’s windbreaker or wear it solo during cool-weather training. Made with microfleece fabric and stretch materials, it’s a high-performance training top that balances insulation, mobility, and breathability.
- Microfleece main body for lightweight warmth
- 4-way stretch chest panel with secure zip pocket
- 1/4 front zip with reflective bungee pull
- Cuffed sleeves with elastic binding for comfort
- Reflective Trailberg branding at chest
Perfect for layering or standalone use, the Radius is a long sleeve running top made to support outdoor movement. Whether you're on the trail or warming up, it delivers gym jacket men function in a streamlined quarter zip fit.























