Riding a bike in that window between 40 and 65 degrees Fahrenheit often leads to difficult layering decisions. It's too warm for the full thermal winter cocoon and too cold for the usual base layerjerseyarm warmer combo, so you risk either overheating or being miserably cold out on the road. Santini steps in to solve this mid range layering dilemma with the men's Beta Jacket, which boasts windproof versatility for chilly Fall days and early Spring mornings. Made from Windstopper XFree 210 fabric, this jacket provides just the right amount of soft, lightly thermal warmth and element blocking power to navigate any chilly weather workout. It's built to stand alone in temperatures down to 40 degrees Fahrenheit, and can be paired with any number of base layers to extend that range even lower. For the little details, Santini incorporates three rear pockets to carry a spare tube, your phone, and pumpkin cookies for seasonally appropriate mid ride snack stop. Reflective elements across the back of the jacket add modern styling and increase visibility to motorists in low light and dreary conditions.