Protecting you from chilly winds, overheating, and your own sweat build-up, the Craft Active Extreme WindStopper Top covers all the bases during your early morning rides or runs. This high-performance, stretchy baselayer fits right next to your skin so you can slip on a jersey or outer layer to combat the cold.Front and back Windstopper panels block the wind from chilling your core while you"re red-lining at the top of a ridge Pro Zero Extreme fabric uses Pro Zero technology next to your skin to wick moisture and Pro Cool fabric on the outside to let in cool air Antimicrobial treatment prevents body odors from accumulating and overpowering your aerobic breathing Flatlock seams ensure you don"t chafe while running or cycling Product FeaturesMaterial: [outer] Pro Cool (polyester); [front and back panels] GORE WindStopper (85% polyester, 15% elastane); [lining] Pro Zero (polyester)Insulation Weight: Fit: next-to-skinLength: hipCenter Back Length: Pockets: Antimicrobial Treatment: noSPF Rating: UPF Rating: Thumbholes: noWeight: Recommended Use: cool weather cyclingManufacturer Warranty: 30 days