Castelli Nano Flex Pro Race Bib ShortsThe Castelli Nano Flex Pro Race Bib Shorts are an evolution of the highly-regarded Omloop all-weather cycling shorts. They're now made from Nano Flex 3G, giving a boost to all-weather performance - be it wet, cold, dry or anything in-between the Nano Flex Pro provides the protection you need fr comfortable cycling.  Just like their predecessor, the original Omloop thermal shorts, the Nano Flex Pro Race Bib Shorts feature the same extended leg length, the extra 10cm adding warmth across over the knees. You'll also enjoy the luxurious warmth of the Nano Flex fabric. It's as warm as Castelli's Thermoflex fabric, making it superb in cold dry weather. But with its nanotechnology treatment, you'll also get extra protection when rain clouds roll through and burst. For early season races and training where the weather can turn quickly from good to bad and back again, there’s nothing better.The shorts are tailored to fit beautifully but they use fewer seams in their construction. Not only does this reduce any chance of chafing but also ensures fewer areas for water to seep inside. Then there’s the superb Progetto X2 Air seamless seat pad inside. Utilising ventilating perforations, it keeps you more comfortable on endurance road rides. The design allows air and moisture to flow directly to the surface fabric for quick evaporation maintaining dryness. The seat pad is constructed with three-layer components, each dedicated to a specific purpose to create the most comfortable seat pad available.First created by Pro cyclists for the changeable conditions of Spring Classics races, the Nano Flex Pro Race Bib Shorts ensure you to enjoy extra weather protection when it comes to your own springtime training and racing. Features:Materials: 85% Polyamide, 15% ElastaneNano Flex 3G fabric is water repellent, stretchy and warm thanks to the luxuriously soft brushed insideReduced seams for comfort and to prevent water from coming in during wet ridesKnee-length cut for extra warmth that doesn't require a gripper elasticMesh bibs don't add warmth to the upper body so you can dress for theconditionsProgetto X2 Air seamless seat pad for long hours in the saddleSuggested temperature range: 13 to 20 degrees CBuy Castelli Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.