September 12, 2012

Financial · Leadership

Gildan to Participate at Upcoming Institutional Investor Conferences

Montréal, Wednesday, September 12, 2012 – Gildan Activewear Inc. (GIL; TSX and NYSE) announced that Laurence
G. Sellyn, Executive Vice President, Chief Financial and Administrative Officer, will present an overview of the Company’s business and growth strategy at the Scotiabank Global Banking and Markets Back to School Conference, in Toronto, on Thursday, September 13, 2012, at 1:40 PM ET. Mr. Sellyn will also be participating at the CIBC 11th Annual Eastern Institutional Investor Conference, in Montreal, on Thursday, September 20, 2012, at 10:35 AM ET. The CIBC Eastern Conference will adopt a format of interactive discussions with the audience and a CIBC research analyst.

Gildan’s presentation at the Scotiabank conference will be simulcast online and will be available on the Company’s website at, http://gildan.com/corporate/IR/webcastPresentations.cfm, or at the following URL: http://event.on24.com/r.htm?e=510601&s=1&k=5B6E82AF31722BA04E39BF3594E0028B. Gildan’s participation at the CIBC conference will also be simulcast online and will be available on the Company’s website at, http://gildan.com/corporate/IR/webcastPresentations.cfm, or at the following URL: http://webcasts.welcome2theshow.com/cibc2012invest. A replay of the webcasts will be available after the conclusion of the live presentation and discussion, and will be available for the next 30 days, at the locations listed above.

About Gildan

Gildan is a marketer and globally low-cost vertically-integrated manufacturer of quality branded basic family apparel. Gildan® is the leading activewear brand in the printwear market in the U.S. and Canada, and is increasing its penetration in international markets, such as Europe, Mexico and the Asia-Pacific region. We are also one of the largest suppliers of athletic, casual and dress socks sold to a broad spectrum of retailers in the U.S. The Company markets its products under a diversified portfolio of company-owned brands, including Gildan®, Anvil®, Gold Toe®, PowerSox®, SilverToe®, Auro®, All Pro® and GT®. We are also the exclusive U.S. sock licensee for the Under Armour® and New Balance® brands. The Company is now pursuing a strategy to become a major supplier of basic branded activewear and underwear for U.S. retailers. In addition to supplying retailers, Gildan also manufactures select activewear programs for leading consumer brands. With over 30,000 employees worldwide, Gildan owns and operates highly efficient, large-scale, environmentally and socially responsible manufacturing facilities in Central America and the Caribbean Basin and has taken initial steps towards the potential development of a manufacturing hub in Asia to support its planned growth in Asia and Europe. More information on the Company can be found on Gildan’s website at www.gildan.com and more information on its corporate citizenship practices can be found at www.genuinegildan.com.

Investor inquiries :

Jessy Hayem, CFA

Senior Vice-President, Head of Investor Relations and Global Communications

(514) 744-8511

Media inquiries :

Geneviève Gosselin

Director, Global Communications and Corporate Marketing

(514) 343-8814