Lightweight Performance. The Tec Stalker series features lightweight, breathable, moisture wicking fabric that moves sweat away from your body while drying quickly. This is the next-to-skin layer that you want on everydayhot or cold. The built in all-over stretch offers non-restrictive freedom of movement. Dry and comfortablethe Tec Stalker series will keep you operating at peak performance. Available in a mock shirt and a 1/4 zip pullover.