We hit the ground running year round, so Lululemon made this half-zip to move with us. The cozy fabric is soft against our skin as a base layer when it's chilly, and perfect over a tank when temperatures are on the rise. Race you to the park! Key features soft, breathable Rulu fabric is sweat-wicking and four-way stretch two-way zipper lets you catch a breeze mid-stride Cuffins sleeves are the run gloves you can't forget, while thumbholes help make for easy layering reflective details help you stay visible when you're out before the sun a hidden pocket lets you stash your key and a gel chafe-resistant flat seams help keep you comfortable imported Fit + function designed for: run fabric(s): Rulu fit: slim length: hip This jacket is in excellent used condition with no flaws. To me, it looks like it's barely been worn, if ever. The long internal Lululemon tag has been removed, but the side tag in the hidden side pocket shows that it's a size 8. Please review the below measurements carefully to ensure a good fit. They were taken on the front with the jacket zipped up and laid flat. Note that the fabric is VERY stretchy, so can expand to accommodate larger dimensions than the ones shown below. Pit - Pit: 18" Pit - Bottom Hem: 19.5" Shoulder - Bottom Hem: 25" Sleeve: 25.5" (Has Cuffins with Thumb Holes) Please let me know if you have any questions.