New York (CNN Business) David's Bridal has been buried under a mountain of debt. It hasn't helped that fewer people are tying the knot lately.

The nation's largest bridal retailer filed for Chapter 11 bankruptcy protection on Monday. It owes between $500 million and $1 billion to creditors, according to court records

As part of the bankruptcy, David's Bridal reached a deal with lenders to reduce the company's debt by more than $400 million. The agreement will allow David's Bridal to continue to operate its more than 300 stores.

Unlike Alfred Angelo, which shut down last year without telling soon-to-be brides, David's Bridal customers won't be affected by the bankruptcy. Wedding dresses will arrive on time and bridal appointments won't be impacted, the company said.

"While David's Bridal used to be the dominant force in bridal outfitting, it gradually became less relevant," said Neil Saunders, managing director at GlobalData Retail."David's Bridal is a classic case of a retailer with too much debt and a challenged business model."

Read More