This is a very tightly woven, light weight fabric that is water repellent and wind resistant. Our high vis cycling jacket is cut a bit fuller than our cycling jerseys for layering and comfort. As a result it can be worn for a wide range of temperatures. It’s also very comfortable and highly flexible. With the temp in the 50s and above, a Poly tee shirt and our cycling windbreaker will do nicely. Colder, a merino wool base layer and the fluorescent cycling windbreaker are very adequate. When it’s really cold, a double base layer and our hi vis cycling jacket make the perfect match. Wherever you live you’re going to love this versatile jacket. The windbreaker comes with a full-length, bright yellow zipper and three deep back pockets. Our cycling jacket’s fluorescent yellow base with orange chevron pattern helps provide better visibility than ordinary solid color fluorescent cycling windbreakers. Size is XXL but fits more like an XL New w/o tags