If you're attending a more casual and laid-back summer wedding, an off-shoulder sundress is the perfect choice. The off-shoulder neckline adds a flirty and playful touch to the dress, while the lightweight and breathable fabric will keep you cool and comfortable throughout the day. Opt for a bright and cheerful color like yellow or coral to embrace the summer vibes. Pair it with some wedges and a straw hat for a boho-chic look. This off-shoulder sundress is not only stylish but also versatile, making it a great addition to your summer wedding guest wardrobe.