If you don't want to roast while you ride this summer, the Sugoi RS Sleeveless Men's Base Layer is right up your alley. It's cut to fit snugly under Sugoi's form-following Pro Fit jerseys, the better to keep you dry when you're pedaling hard under the sun, and made with fabric that's cooling and UV-ray blocking. Sugoi fashions the RS base layer out of its IceFil fabric, which, as the name implies, has a bunch of cooling technology built in, as well as being highly adept at wicking moisture away from your skin. The fabric is also treated with Xylitol, the same chemical that gives mint gum its cool and tingly taste, to produce a cooling effect against your skin when you're heating up.