Grindstone Trail Runs - Performance T-Shirt (PC380) speedroll BREATHABILITY - Internal breathable lining

BREATHABILITY - Internal breathable lining for enhanced versatility

The 4D GUIDANCE SYSTEM™ helps provide adaptive stability

Reflective stripe on front of garment and two stripes on back for hi-visibility

Digital colors are 100% polyester

while the full-length zipper allows for easy on and off as you transition between activities

Grindstone Trail Runs - Performance T-Shirt (PC380) speedroll BREATHABILITY - Internal breathable liningProduct Description Rated UPF50 to help combat harmful UV rays, this tee also performs with Dry Zone moisture wicking technology to keep you cool, dry and comfortable. 3. 8 ounce, 100% polyester UPF rating of 50 Removable tag for comfort