Brand: Lululemon
Item: Mens short sleeve button-up shirt in a dark black color.
Size: Mens Extra Large (estimated based on overall proportions; size tag not visible in photos).
Design details: Snap front closure, spread collar, two front chest pockets with flaps, slightly curved hem, short sleeves.
Fabric: Lightweight performance woven fabric on the front with ribbed knit back panel and side/underarm sections for added breathability and stretch.
Branding: Small reflective Lululemon logo at the lower back hem.
Style: Athletic tech shirt designed for training, golf, or casual everyday wear.