Here's a gorgeous one-shoulder prom dress that is overflowing with sparkly style. Whether you're attending prom, a fancy gala, or another formal event, this elegant evening gown is fully sequined from the asymmetrical neckline to the floor for a red-carpet-ready look. The long sequin formal dress has a chic cut-out design on the one-shoulder strap that splits into three shimmering bands that flow over the open back. With a thigh-high side slit, this dazzling long sequin dress gets a sexy vibe as it smooths over the curves before pooling into a small train that follows every move. From Primavera, this long designer one-shoulder prom dress is ready to impress family and friends at your memorable event.