Sizes generally cover the typical men's range — for example, XS through XXXL (some listings show XS–XXXL, others list S–3XL). Availability depends on the specific product listing.
Care varies by fabric: cotton shirts commonly recommend machine wash and line dry or lay flat to dry; printed items often advise washing cold inside out and tumble-drying low or hanging to dry; rayon styles typically recommend machine wash cold with like colors on a gentle cycle, lay flat to dry, and low ironing if needed.
Most collared button-downs have a traditional shirt collar and short sleeves. Some graphic or jersey-style items use a round (crew) neckline with short sleeves. Verify the individual product photos and descriptions for exact styling.
Most feature a front button-up closure and many listings mention a single patch pocket on the chest as part of the design.
They are generally short-sleeve, at-hip–length button-down shirts styled as casual collared tops. Individual listings provide exact length or model fit information.