Great condition, worn only a few times. A performance top for cooler conditions delivered in a temperature-regulating Merino blend. One of Tracksmith's original products, refined over the years, perfecting the design utilizing the soft and durable material to create a layer that moves with you, matching the rigor of your runs year after year after year. A constant in Tracksmith’s wardrobe, the Harrier has endured the test of time for a reason: what works, just works.