The Tna Polartec® Thermal Pro® 1/2 Zip Sweater is a polartec® Thermal Pro® 1/2-zip sweatshirt. This is a mockneck sweatshirt with a 1/2-zip front and zip-closure hand pockets. It’s made with Polartec® Thermal Pro® — breathable thermal fleece with a shaggy texture for weightless warmth and long-lasting comfort. This fabric is made with 100% recycled polyester. This style has been recently redesigned for an even better look and fit.