As one of the latest pieces in Giro's Sewn in California category of apparel, the New Road Sleeveless Base Layer was created to fit comfortably under your favorite mid or outer layer. The base layer was constructed using merino wool and polyester, as doing so made it lightweight, breathable, and able to move moisture exceptionally well. This blend of materials works to pull moisture away from your skin to keep your core dry, cool, and comfortable underneath your additional upper body layers. Minimal seams keep you moving in the saddle free of friction and abrasion, and a slightly elongated hem ensures the base layer remains securely tucked in under both bib shorts and casual clothing alike. The Giro New Road Base Layer Sleeveless Men's is available in sizes X Small to XX Large and in the color Heather Grey.