This classic long-sleeve button-up shirt features a bold yellow and navy blue plaid pattern with fine green accent lines, creating a vibrant yet balanced check design. Crafted from what appears to be a soft cotton or cotton-blend twill fabric, it offers comfort and durability for everyday wear. The shirt includes a standard pointed collar, front button closure with brown-toned metal buttons, and single-button barrel cuffs—details that enhance its timeless workwear-inspired aesthetic. Neatly folded presentation highlights clean stitching and consistent pattern alignment across seams and placket. Ideal for casual layering in fall and winter, it pairs effortlessly with jeans, chinos, or under jackets. The '格子-6618' (Plaid-6618) model number and 'NEW FASHION' tag suggest a contemporary reinterpretation of traditional flannel-style shirts, targeting modern streetwear and smart-casual consumers. No visible brand logo or trademark is present on the collar, placket, or cuff labels (only a small indistinct tag inside collar), indicating it is likely an unbranded or generic fashion item produced for e-commerce marketplaces. Suitable for daily wear, weekend outings, or relaxed office environments where smart-casual dress codes apply.