Lululemon Keep the Heat Thermal Long Sleeve Shirt. The color is called Heathered Green Jasper. Please refer to the last pic for color reference as my pics showed up more blue-and this top is definitely more green. Knit wool blend fabric is stretchy and keeps you warm. It is thin like a Swiftly and fits similarly. The arms are very fitted and very long. I bought this directly from Lululemon, and I am the only owner. I always washed it in delicate, cold, and hung to dry. I mostly wore it while figure skating. Size 12 Very good pre-owned condition. No holes. From a smoke-free/pet free home