Stay dry comfortable and focused in the Nike Element 1/2 Zip Top. Fabric is sanded on the back for a warm soft feel while ribbed cuffs add a comfortable secure fit that maintains its shape. Thumbholes help you seal in warmth and keep your sleeves where you want them. The mock neck with a half-length zipper helps you shut out cold air while enabling customizable coverage. Hem vents let you move freely and a straight hem is designed to fall at the hips for comfortable coverage. Reflective bar at the back for visibility in low light. Reflective Swoosh design trademark on the left chest. 88% polyester/12% spandex.