Exhibit 5.1

[Letterhead of Wachtell, Lipton, Rosen & Katz]

July 13, 2026

Lands’ End, Inc. 

5 Lands’ End Lane 

Dodgeville, WI  53595

Ladies and Gentlemen:

We have acted as special counsel to Lands’ End, Inc., a Delaware corporation (the “Company”), in connection with the Registration Statement on Form S-8 (the “Registration Statement”, which term does not include any other document or agreement whether or not specifically referred to therein or attached as an exhibit or schedule thereto), under the Securities Act of 1933, as amended (the “Securities Act”), relating to the issuance by the Company of up to 275,379 shares common stock, par value $0.01 per share, of the Company (the “Shares”), 166,018 of which may be issued pursuant to the Sign-On Nonqualified Stock Option Agreement dated July 13, 2026, by and between the Company and Charlie Cole, and 109,361 of which may be issued pursuant to the Sign-On Restricted Stock Unit Agreement dated July 13, 2026, by and between the Company and Charlie Cole.

In our capacity as special counsel to the Company and in connection with the opinion set forth herein, we have examined the originals, or duplicates or certified or conformed copies, of such corporate records, agreements, documents and other instruments, including the certificate of incorporation and bylaws of the Company, in each case, as amended through the date hereof, and have made such other investigations as we have deemed relevant and necessary in connection with the opinion set forth below. As to questions of fact material to this opinion, we have relied upon oral and written representations of officers and representatives of the Company and certificates or comparable documents of public officials and of officers and representatives of the Company.

In making such examination and rendering the opinion set forth below, we have assumed without verification the genuineness of all signatures, the authenticity of all documents submitted to us as originals, the conformity to originals of all documents submitted to us as copies, and the legal capacity of all individuals executing any of the foregoing documents.

In rendering the opinion set forth below, we have also assumed that the Shares, when issued, will be duly authenticated by the transfer agent and registrar for the Shares and that the certificates, if any, evidencing the Shares to be issued will be manually signed by one of the authorized officers of the transfer agent and registrar for the Shares and registered by such transfer agent.

Based upon the foregoing, and subject to the qualifications, assumptions and limitations stated herein, we are of the opinion that when the Shares have been issued and delivered pursuant to the terms and conditions set forth in the Registration Statement, the Shares will be validly issued, duly authorized, fully paid and nonassessable.

We do not express any opinion herein concerning any law other than the Delaware General Corporation Law (including the statutory provisions, all applicable provisions of the Delaware Constitution and reported judicial decisions interpreting the foregoing). This opinion letter is being furnished solely in connection with the offer, sale and issuance of the Shares and may not be used, quoted, relied upon or otherwise referred to for any other purpose without our prior written consent.

We hereby consent to the filing of this opinion letter as Exhibit 5.1 to the Registration Statement. In giving such consent, we do not hereby admit that we are in the category of persons whose consent is required under Section 7 of the Securities Act.