Exhibit 99.1 JoS. A. Bank Clothiers Announces 20.2% Increase in May Sales; Comparable Store Sales Increase 5.6% HAMPSTEAD, Md.--(BUSINESS WIRE)--June 2, 2005--JoS. A. Bank Clothiers, Inc. (NASDAQ National Market:JOSB) announces that its total sales for the fiscal month ended May 28, 2005 (fiscal May 2005) increased 20.2% to $31.5 million compared with $26.2 million in May 2004. Comparable store sales increased 5.6% when compared with the month of May 2004, while combined catalog and internet sales increased 18.7%. Total sales for the four months ended May 28, 2005 increased 20.7% to $128.1 million compared with $106.1 million in the comparable prior year period. Comparable store sales increased 4.4% in the four months ended May 28, 2005, while combined catalog and internet sales increased 24.3%. The Company noted that its suits, shirts and ties continued to perform well, and spring sportswear and trousers were especially strong. JoS. A. Bank Clothiers, Inc., established in 1905, is one of the nation's leading retailers of men's classically-styled tailored and casual clothing, sportswear, footwear and accessories. The Company sells its full product line through 280 stores in 38 states and the District of Columbia, a nationwide catalog, and an e-commerce website that can be accessed at www.josbank.com. The Company is headquartered in Hampstead, MD, and its common stock is listed on the NASDAQ National Market under the symbol "JOSB". The Company's statements concerning future operations contained herein are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from those forecast due to a variety of factors outside of the Company's control that can affect the Company's operating results, liquidity and financial condition such as risks associated with economic, weather, public health and other factors affecting consumer spending, the ability of the Company to finance its expansion plans, the mix and pricing of goods sold, the market price of key raw materials such as wool and cotton, availability of lease sites for new stores, the ability to source product from its global supplier base and other competitive factors. These cautionary statements qualify all of the forward-looking statements the Company makes herein. The Company cannot assure you that the results or developments anticipated by the Company will be realized or, even if substantially realized, that those results or developments will result in the expected consequences for the Company or affect the Company, its business or its operations in the way the Company expects. The Company cautions you not to place undue reliance on these forward-looking statements, which speak only as of their respective dates, and assumes no obligation to update any of the forward-looking statements. These risks should be carefully reviewed before making any investment decision. CONTACT: JoS. A. Bank Clothiers, Inc., Hampstead, MD David E. Ullman, EVP/CFO, 410-239-5715 or RJ Falkner and Company, Inc. Investor Relations Counsel R. Jerry Falkner, CFA 800-377-9893 info@rjfalkner.com E-commerce Address for JoS. A. Bank Clothiers, Inc.: www.josbank.com