The Horizon ¼ Zip is the ultimate versatile thermal layer. Wear it solo on brisk mornings or as a base layer when temps drop below freezing, with SOLARCORE® insulation, breathable wind resistance, and 4-way stretch for all-day comfort. Zoned SOLARCORE® insulation on front and back body for balanced warmth Durable, stain-resistant, breathable, and wrinkle-resistant fabric Designed with a longer cut that stays tucked in for warmth and comfort when layering Low-profile collar that won't rub or get in the way Anit-microbial treatment to fight odor Premium YKK® zippers for durability