The new alpha jacket is windproof and water resistant thanks to windstoppers 150 material but the real innovation on this jacket is the detached insulating layer which stays close to your body when you unzip the jacket so your core doesnt get blasted with cold air throw out everything you think you know about cycling jackets and redesign the way a jacket should be made or possibly how theyll all be made in a few years when everyone else follows our lead once again with the alpha were in