Buy now, pay later (BNPL) service provider, Affirm, has partnered with sportswear and accessories brand, Theory, to enable its customers to pay over the course of four biweekly, interest-free payments.

Theory shoppers can select Affirm at checkout on theory.com and approved customers can split the total cost of any purchase of $50 or more and pay over time. Thus, customers who choose to utilize the offering will see the total cost of their purchase and would not encounter late or hidden fees.

“Theory’s brand has earned a devoted following with its modern, fashion-forward sportswear designed to make anyone look and feel their best,” said Affirm’s Chief Commercial Officer Silvija Martincevic.

“Customers can now use Affirm to pay over time and revitalize their wardrobe without interest or hidden fees, giving them a flexible and transparent option to buy a sleek new pair of pants, or sophisticated top, stress-free.”

The partnership comes at a time when the BNPL category has witnessed significant growth. In 2019, merchants who offered Affirm reportedly saw 85 percent higher average order values when compared to other payment methods. Furthermore, in 2020, 67 percent of purchases were made by repeat Affirm customers.

To date, Affirm partners with over 29,000 retailers.