Ditch those uncomfortable layering pieces and upgrade to the Boulder Gear Theo Performance 1/4-Zip Mid-Layer. Made with ultra-warm and soft polyester fabric, this mid-layer helps to keep you comfortable even on snowy days. It uses stretch fabric to give you plenty of freedom of movement along with flatlock stitching that helps reduce any rub points. If the weather warms up or you’re working up a sweat, you can also adjust the 1/4-zip design to allow for more airflow. With a classic and flattering fit, you can also wear the Theo Performance 1/4-Zip as an après option too!