UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): February 27, 2013

Hanesbrands Inc.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (336) 519-8080

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Item 7.01. Regulation FD Disclosure

On February 27, 2013, Hanesbrands Inc. (the “Company”) issued a press release reaffirming its full-year earnings, sales and financial guidance for 2013 and discussing its operating margin and free cash flow potential. A copy of the press release is attached as Exhibit 99.1 to this Current Report on Form 8-K.

The Company will discuss its Innovate-to-Elevate strategy and use of free cash flow at an investor meeting starting at 9 a.m. EST on Thursday, February 28, 2013 at the Company’s headquarters in Winston-Salem. A live Internet webcast of the meeting will be accessible on the HanesBrands corporate website at www.hanesbrands.com. The meeting is expected to last approximately 2 ¹/₂ hours. An archived replay of the webcast, as well as presentation slides with annotated speaker notes, will be available in the investors section of the website.

Exhibit 99.1 is being “furnished” and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934 (the “Exchange Act”), nor shall Exhibit 99.1 be deemed incorporated by reference in any filing under the Securities Act of 1933 (the “Securities Act”) or the Exchange Act, except as shall be expressly set forth by specific reference in such filing.

Exhibit 99.1 contains disclosures about free cash flow, which is a non-GAAP measure. Free cash flow is defined as net cash from operating activities less net capital expenditures. Free cash flow may not be representative of the amount of residual cash flow that is available to the company for discretionary expenditures since it may not include deductions for mandatory debt-service requirements and other nondiscretionary expenditures. The company believes, however, that free cash flow is a useful measure of the cash-generating ability of the business relative to capital expenditures and financial performance. Non-GAAP information, such as free cash flow, should not be considered a substitute for financial information presented in accordance with GAAP and may be different from non-GAAP or other pro forma measures used by other companies.

Statements in this Current Report on Form 8-K and accompanying exhibit that are not statements of historical fact, including those regarding the Company’s future financial results, are forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. These forward-looking statements are made only as of the date of this report and are based on the Company’s current intent, beliefs, plans and expectations. They involve risks and uncertainties that could cause actual future results, performance or developments to differ materially from those described in or implied by such forward-looking statements. These risks and uncertainties include the risks identified from time to time in the Company’s most recent Securities and Exchange Commission reports, including the 2012 Annual Report on Form 10-K, Quarterly Reports on Form 10-Q and Current Reports on Form 8-K, registration statements, press releases and other communications. The Company undertakes no obligation to update or revise forward-looking statements to reflect changed assumptions, the occurrence of unanticipated events or changes to future operating results over time, other than as required by law.

Item 9.01. Financial Statements and Exhibits

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Exhibits