PrimaLoft® Dry is a silk-weight short sleeve baselayer leveraging the advanced fabric technology unique to PrimaLoft®; resulting in an all-season garment that delivers lightweight warmth when at rest, and extreme breathability when active. Elongated cut to provide maximum coverage avoiding a bulky feel when worn under bibs.
Santini is an Italian clothing manufacturer, using a European size chart, which is smaller than North American size charts. You may need a larger size than you normally wear.