most expensive prom dress Formal Sequin Fitted Long LaDivine CC416 _cm/incharmhole_cm/inch (end of arm) only used for one shoulder or off shoulder dress.3 Luxury Long Mermaid One Shoulder

or Chelsea boots, chinos, and a casual jacket

You might also want to experiment with metallics (gold and silver are totally on-trend this season)

Apply Filter Reset All Alaska | #Y3252LB Strapless Ball Gown Wedding Dress with Lace-Up Back Constance | #ST674SB Modern Fit and Flare Bridal Gown with Pearl Draping Josie | #Y3242SBLB Tiered Tulle Ball Gown Wedding Dress with Lace-Up Back Hyacinth | #ST672SB Beaded Basque Waist Wedding Dress Penelope | #Y3249 Lace Fit and Flare Wedding Dress with Halter Neckline Xanthe | #ST670ZB Clean Ballgown Wedding Dress with Lace Jacket Valora | #ST680 Beaded Lace Mermaid Wedding Dress with Long Sleeves Josie | #Y3242SB Tiered Tulle Ball Gown Wedding Dress with Lace Bodice Angelica | #Y3241SB Satin Fit and Flare Gown with Long Sleeves Melody | #ST660SB Glamorous Ball Gown with Beaded Bodice Maribel | #Y3213LB Princess Corset Wedding Dress Paloma | #Y3210 Sexy Mikado Mermaid Gown Francoise | #ST661 Dramatic Beaded Fit and Flare Bridal Gown Selene | #Y3226 Strapless Fit and Flare Bridal Gown with Straight Neckline Ruth | #Y3212 Sheath Wedding Dress with Soft Tulle Draping Bree | #Y3221FI Princess Wedding Dress with Lace Jacket Nim | #Y3202FI Satin Bridal Gown with Lace Sleeves #ST654TRAIN Detachable Tulle Train Bridal Accessory Musa | #ST654 Luxury Lace Wedding Dress with Jacket Bridal Accessory Betty | #Y3190FI Dreamy A-line Bridal Dress Betty | #Y3190 Lace Wedding Dress with Gloves #Y3189SL Off-the-Shoulder Straps with 3D Organza Flowers #Y3185SL Floral Gauntlet Sleeve Abby | #Y3181 Boho Bride Gown with Cold Shoulder Bell Sleeve

You can remove it later if others do, but arriving without one signals that you didn't prepare