From the product description on the manufacturer website: "No need to iron, these soft, 100% cotton dress shirts are specially engineered to resist wrinkles so it stays looking crisp and pulled-together. Seams, armhole and collar are specially treated to stay smooth. Buttons are securely cross-stitched. Interlined collar has a crisper finish. Triangular gusset at side seams adds durability. Made to move with you, this 100% cotton fabric has a natural stretch due to the unique construction of its yarn. Plus, we added a non-iron finish to keep you wrinkle-free" All items from a smoke-free but pet friendly home. Also, all items washed and steamed prior to shipping. All prices are negotiable unless otherwise noted In an effort to reduce waste, all items are securely wrapped and shipped with repurposed/recycled materials whenever possible.