DESTINATION XL GROUP, INC.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a) of the Securities

Exchange Act of 1934

Filed by the Registrant ☒Filed by a Party other than the Registrant ☐

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☐ Preliminary Proxy Statement

☐Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))

☒ Definitive Proxy Statement

☐ Definitive Additional Materials

☐ Soliciting Material Pursuant to §240.14a-12

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(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

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Notice of Annual Meeting of Stockholders

to be held on August 7, 2025

Notice is hereby given that the 2025 Annual Meeting of Stockholders (the “Annual Meeting”) of Destination XL Group, Inc. (the “Company”) will be held at the corporate offices of the Company, 555 Turnpike Street, Canton, Massachusetts 02021, at 11:30 A.M. local time on Thursday, August 7, 2025 for the following purposes:

To elect seven directors to serve until the next Annual Meeting of Stockholders and until their respective successors have been duly elected and qualified.

To approve, on an advisory basis, named executive officer compensation.

To ratify the appointment of KPMG LLP as our independent registered public accounting firm for the fiscal year ending January 31, 2026.

To transact such other business as may properly come before the Annual Meeting and any adjournment or postponement thereof.

These proposals are more fully described in the Proxy Statement following this Notice.

The Board of Directors recommends that you vote (i) “FOR” the election of all seven nominees to serve as directors of the Company, (ii) “FOR” the approval, on an advisory basis, of named executive officer compensation, and (iii) “FOR” the ratification of the appointment of KPMG LLP as our independent registered public accounting firm for the fiscal year ending January 31, 2026.

Along with the attached Proxy Statement, we are sending you a copy of our Annual Report on Form 10-K for the fiscal year ended February 1, 2025.

The Board of Directors has fixed the close of business on June 13, 2025 as the record date for the determination of the stockholders entitled to notice of, and to vote at, the Annual Meeting. Accordingly, only stockholders of record at the close of business on that date will be entitled to vote at the Annual Meeting. A list of the stockholders of record as of the close of business on June 13, 2025 will be available for inspection by any of our stockholders for any purpose germane to the Annual Meeting during normal business hours at our principal executive offices, 555 Turnpike Street, Canton, Massachusetts 02021, beginning on July 23, 2025 and at the Annual Meeting.

Stockholders are cordially invited to attend the Annual Meeting in person. Regardless of whether you plan to attend the Annual Meeting, please mark, date, sign and return the enclosed proxy to ensure that your shares are represented at the Annual Meeting.

By order of the Board of Directors,

/s/ ROBERT S. MOLLOY

ROBERT S. MOLLOY

Secretary

Canton, Massachusetts

June 30, 2025

Important Notice Regarding the Availability of Proxy Materials for the Annual Meeting of Stockholders to be Held on August 7, 2025: The Proxy Statement and 2025 Annual Report to Stockholders are available at:

https://investor.dxl.com/financial-information/annual-reports

TABLE OF CONTENTS

555 Turnpike Street

Canton, Massachusetts 02021

(781) 828-9300

Proxy Statement

Annual Meeting of Stockholders

August 7, 2025