Cannondale Men's Sirocco Wind Jacket 100% Polyester Imported DWR treatment, W/P 10,000MM M/P 10,000g/m2/24hrs laminate Boreas fabric is windproof and water resistant for cooler rides Lightweight fabric construction offers protection from winter conditions without the bulk Windproof Boreas front panel and stretch thermal back panel for cool weather comfort DWR treatment, W/P 10,000MM M/P 10,000g/m2/24hrs laminate