The Shirt That Does EverythingMeet your new wardrobe workhorse. The SPANX® Poplin Oversized Button-Up Shirt is the elevated essential you didn’t know you needed — a crisp, classic poplin fabric with the relaxed, oversized fit that feels as good as it looks.In a clean classic white, this shirt is endlessly versatile. Tuck it into high-waisted trousers for a polished office look, knot it over denim for a casual weekend vibe, or layer it open over a fitted tee. SPANX’s signature attention to fit and fabric means you get the effortless look without sacrificing comfort. Oversized silhouette — relaxed, modern, and flattering on every body Crisp poplin fabric — structured yet breathable Classic white — the most versatile color in your wardrobe Button-up front with a clean, polished finish Available in XS, S, M The shirt you’ll reach for every single week — because effortless style never goes out of fashion.