For sale is a used Nike Therma Sphere Element quarter/half-zip thermal running/athletic top in dark gray heather, men's small. I used this shirt as a mid/outer layer for mild winter running over many years. The shirt shows general wear and fraying on some of the seams and stitching, but has no holes. The shirt is made of a thin, slightly stretchy knit material with a waffle pattern on the inside. The shirt has a raised collar with a reflective swoosh and stripe on the back. The shirt has a quarter-zip from the collar and a quarter-zip on the right hem. There is a small zippered pocket for cards on the left hem near the hip. The sleeves have thumb holes and flaps to fold over to cover the hands. The shirt is a regular fit and has room for layers underneath.