GIRO CHRONO SL BASE LAYER M/L WhiteA good base layer should feel great against your skin, properly wick moisture and stretch for a fit that makes you forget you have it on. The lightweight engineered knit Men's Chrono Base Layer does just that. It features nylon thread to ensure a soft feel, while polyester content pulls moisture away from your skin. It has enough stretch to allow freedom of movement and fit your body comfortably. It's also extremely light and tucks easily under a bib