ASICS Men's Thermopolis 1/2 Zip Top 92% Polyester/8% Spandex Soft ASICS multi-weather fabric is brushed for enhanced comfort Zippered mock neck with protective wind panel and zipper garage help repel the elements Side seam zippered stash pocket with media cord opening Flat seams for greater comfort and reduced chafing Articulated elbow seaming promotes greater freedom of movement