EX-99.1

Exhibit 99.1

LOGO

For Immediate Release

DESTINATION XL GROUP, INC. ANNOUNCES OFFERING

OF COMMON STOCK BY SELLING STOCKHOLDER

CANTON, Mass., September 9, 2021 – Destination XL Group, Inc. (NASDAQ: DXLG), the leading omni-channel specialty retailer of Big + Tall men’s clothing and shoes, today announced the commencement of an underwritten public offering of shares of the Company’s common stock by Red Mountain Partners, L.P. The selling stockholder will receive all of the net proceeds from the offering. The Company is not offering any of its shares of common stock and will not receive any of the proceeds from the offering, but will bear certain costs associated with the sale of such shares, other than underwriting discounts and commissions and the expenses of the underwriters. The offering is subject to market and other conditions, and there can be no assurance as to whether or when the offering may be completed or as to the actual size or terms of the offering.

D.A. Davidson & Co. and Craig-Hallum Capital Group LLC are acting as joint book-running managers for the proposed offering.

A shelf registration statement on Form S-3 (including a base prospectus) (File No. 333-256990) relating to these securities has been filed with the Securities and Exchange Commission (“SEC”) and became effective on June 21, 2021. The proposed offering will be made only by means of a prospectus and a prospectus supplement. Copies of the preliminary prospectus supplement and accompanying prospectus relating to this offering may be obtained, when available, by visiting the SEC’s website at www.sec.gov, or contacting the offices of D.A. Davidson & Co. at Attention: Equity Syndicate, 8 Third Street North, Great Falls, MT 59401, telephone: (800) 332-5915, or by email: prospectusrequest@dadco.com, or by contacting Craig-Hallum Capital Group LLC, 222 South Ninth Street, Suite 350, Minneapolis, MN 55402, Attn: Equity Capital Markets, telephone: (612) 334-6300 or by e-mail: prospectus@chlm.com. Before you invest, you should read the registration statement, the base prospectus, the preliminary prospectus supplement, and other documents filed with the SEC and incorporated by reference therein for more complete information about the Company and the proposed offering.

This press release shall not constitute an offer to sell or a solicitation of an offer to buy these securities, nor shall there be any offer or sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or jurisdiction.