Sydney Sweeney's lingerie brand, SYRN, has achieved its strongest sales quarter since its launch, with record-breaking sales, sold-out collections, and increasing consumer demand, according to a source. The brand reportedly doubled its sales in the third quarter compared to the second, and September emerged as its highest-grossing month, generating more than three times the sales recorded in June.

The momentum accelerated with the launch of Sweeney's "Birthday Boobs" collection, which resulted in SYRN's biggest single sales day in the company's history. This collection sold out within 24 hours, generating over $2 million in sales.

October is projected to continue this growth trajectory, with sales on track to increase by an additional 20 percent compared to September, potentially setting another monthly sales record for the brand. This success is attributed in part to Sweeney's engaging promotional campaigns, including her recent holiday collection, which offers a playful take on classic Christmas themes.

Sweeney has actively promoted SYRN through various themed campaigns, channeling characters such as Cindy Lou Who from "How the Grinch Stole Christmas" and characters from "Home Alone." Other festive campaign imagery has drawn inspiration from "Corpse Bride" and "White Christmas," blending holiday themes with the brand's intimate apparel.

SYRN is demonstrating signs of establishing itself as a significant player in the intimates market. The brand's strategy combines Sweeney's cultural influence with direct consumer engagement and a market demand for lingerie that balances playful design with confidence and accessibility. As the brand looks to its next phase, it plans to expand its product offerings, improve inventory availability, and further cultivate its independent brand identity.