low cut dress Women's Slim Mid-Length Low-Cut Lace-Up – This garment fits true to size One-Shoulder Backless Maxi Dress -

Besides, her other classmates would also be wearing a costume

Best Backless Summer Dresses Get the look: Backless dress + Bangles + Small sparkly bag H&M Long Halterneck Dress Get the look: Backless dress + Thin bangle + Heels REVOLVE Siagre Silk Backless Gown Get the look: Backless dress + Long silver pendant necklace + Heels Reformation Bennett Knit Dress Get the look: Backless dress + Beaded bag + Neutral heels Mirror Palais La Piscine Lady Length Dress Get the look: Backless dress + Gold earrings + Gold bangle Jaded London Sheer Glitter Backless Dress Get the look: Backless dress + Black sunglasses + Bright clutch + Heels Reformation Mineral Low Back Knit Dress Get the look: Backless jumpsuit + Hair clip + Small gold hoops + Clutch CULTNAKED Museum Jumpsuit Get the look: Backless dress + Black heeled sandals KHAITE Kent Open-Back Draped Satin Maxi Dress Get the look: Backless dress + Slicked-back hairstyle Get the look: Backless dress + Gold hair clip + Heels REVOLVE Chanthal Lace Stitch Gown Shop More Backless Dresses Outcast Emmaley Maxi Dress This color and the back

Additional reporting by Samantha Sutton and Nikita Charuza Best Poncho to Wear With a Dress H&M Fringe-Trimmed Poncho ($33) When you want a lightweight layer that'll add a little volume to your look without being too heavy that you might feel bogged down by it, go for a classic poncho like this fringe style from H&M

Microfiber and leather let air flow