This classic men's long-sleeve button-up shirt features a bold navy blue, white, and mustard-yellow plaid pattern with fine gray undertones for depth. Crafted from 100% cotton using a brushed (sanded) finish—labeled '磨毛工艺' (flocking/sanding process) in the image—for enhanced softness, warmth, and comfort against the skin. The shirt includes a standard pointed collar, front snap-button closure with black resin buttons, and a single chest pocket with buttoned flap. Tailored for a regular fit, it offers clean lines and durable construction ideal for layering or standalone wear. Perfect for autumn and winter casual settings—pair with jeans, chinos, or under a sweater for versatile smart-casual styling. The fabric’s texture provides subtle heft without bulk, making it suitable for office-casual environments or weekend outings. Size tag visible shows '60', indicating Asian sizing. No brand logo or trademark is present on visible areas (collar label, placket, cuffs), confirming generic/unbranded origin.