The next generation of our popular Pro Tech jacket, the Pro Tech ST uses the same transparent, waterproof-breathable membrane but is now fully seam taped for better weather protection. It also has a more streamlined fit, a longer tail, new cuff, and zipper designs, and the back vent is re-engineered for increased airflow. Weighing in at a mere 5 ounces, the ultra-packable Pro Tech ST makes an ideal emergency piece for training rides; and won't hide your kit on race day. - Ultralight membrane keeps wind and rain out- and body heat in - Seam taped construction for maximum weather protection - Front zipper is asymmetrical for reduced chafing at the neck - Specially designed baffle back vent - Race cut and stretch fabric for reduced wind resistance and a contoured fit - Moisture-wicking lining on the collar - PACKABLE: jacket stuffs into its own back pocket - 3M Scotchlite TM Reflective Material on back pocket