It may seem counterintuitive to wear a base layer in warm weather, but the Hot Ride SL Tee actually keeps you cooler by managing sweat. The secret is its 37.5 fabric, which contains active particles that respond to your body’s temperature. These particles absorb heat and wick away sweat five times faster than polyester. The effect is a controlled microclimate surrounding your body, so you stay cool on the climbs and dry for the descents. Like all our base layers, it’s super comfy on the bike thanks to the seamless construction with cut-off sleeves, V-neck collar, thermoregulation panels, short front hem to fit your riding position, and silicon-lined waistband that never rides up. And it’s designed to integrate perfectly with any Mavic jersey.