Caffeine-infused fabric pours on the warmth!
You know that a cuppa joe can amp you up in the a.m.. But amazingly enough, an infusion of good ol' java gives innovative XO-Therm Base Layers the ability to keep your body temperature within your personal comfort zone. Simply put, coffee reduces the thermal conductivity of the 89% polyester/11% spandex fabric, so the mid-weight, stretchy knit traps more heat. Yet it also moves moisture from skin more effectively, so you won't catch a clammy chill when the action cools off. It's climate control with a coffee kick!