adidas Running X 4D HEAT.RDY Cap ($35)
This simple Running X 4D HEAT.RDY Cap from adidas is designed to be feather light and unfussy, allowing you more time to focus on your run. Featuring the signature adidas HEAT.RDY technology, sweat and moisture buildup is kept to an absolute minimum, while the sleek laser cut air vents help keep things breezy. The back of the hat includes an adjustable strap to create a more fitted shape for security, or loosen up as you soak up the post-workout endorphins.
Why we love it: With a lightweight design, this running cap includes air ventilation holes that create tons of movement. This means you'll be less likely to need to stop, mop up sweat, and readjust throughout your run.
What's worth noting: "Super comfortable, looks rad, great for keeping sweat off your face and out of your eyes," one reviewer writes. "The peak retains its shape so you can either flip it low to keep the sun out of your eyes or pop it up high to get it out of your eyeline. Dries super fast after a wash too. Love it!"
