Semi formal attire for women over 40 40+style Elegant Black and White Studio Portrait of a Confident Woman in a One Shoulder Dress with Soft Wind in Her Hair Stock Image Image of elegant, excitement: 417652767 Semi formal wedding attire is a dress code that falls between cocktail and casual. It's polished but not overly dressy. For Women: Knee length or midi elevated dresses Dressy Going to a Semi Formal Wedding? Here's 7 Stylist Recommended Outfits to Ace the Look Planning bridesmaid hairstyles? Start here. Then download our free "The Bridesmaid Hairstyle Guide" and make choosing bridal party hair simple, stress free, and photo ready. Say yes to that dress and The Girlfriend's Guide to Cocktail Attire: A semi formal dress code for evening events, weddings, and upscale gatherings. Think: dressy but not stuffy. Cocktail attire has fewer rules than Black Tie and White