It’s Lululemon’s ‘Shift Stitch’ crewneck sweatshirt in green. Fabric is waffle-knit, soft, quick-drying, moisture-wicking, and anti-odor. Worn (has some pilling) but still in good condition and comes with its original tags. About 20” wide and 28.5” long and the fabric can stretch a bit. athletic / sport / tech / hiking