Giro's Sleeveless Merino Base Layer is a great addition to every cyclist's closet. A lightweight Merino wool/polyester blend and an athletic fit makes this a great next-to-skin layer, and Merino's superior wicking properties means you'll stay cool and dry. This base layer is a part of Giro's California Collection, and is designed and manufactured in California.
Giro: New Road - Design Theory
Giro: New Road - Design Details
Giro: Changing the Uniform of Speed