Exhibit 5.1

September 27, 2024

Deckers Outdoor Corporation

250 Coromar Drive

Goleta, California 93117

Re: Registration Statement on Form S-8

Ladies and Gentlemen:

You have requested our opinion with respect to certain matters in connection with the filing by Deckers Outdoor Corporation, a Delaware corporation (the “Company”), of a Registration Statement on Form S-8 (as such may be amended or supplemented from time to time, the "Registration Statement") with the Securities and Exchange Commission on September 27, 2024 under the Securities Act of 1933, as amended (the “Securities Act”).

The Registration Statement covers the offering, issuance and sale of up to (i) 6,000,000 shares of the Company’s common stock, par value $0.01 per share (“Common Stock”), under the Deckers Outdoor Corporation 2024 Employee Stock Purchase Plan (the “2024 ESPP”), and (ii) 8,300,000 shares of Common Stock under the Deckers Outdoor Corporation 2024 Stock Incentive Plan (the “2024 SIP,” and together with the 2024 ESPP, the “Plans”). The shares of Common Stock that may be issued pursuant to the Plans are collectively referred to herein as the “Shares.”

In connection with the preparation of this opinion, we have examined such documents and considered such questions of law as we have deemed necessary or appropriate. We have assumed the genuineness of all signatures, the authenticity of all documents submitted to us as originals, and the conformity to originals of all documents submitted to us as copies.

Subject to the foregoing, and the other matters set forth herein, it is our opinion that the Shares, when issued and sold in accordance with the terms of the Plans, and the related award agreements, will be validly issued, fully paid and non-assessable.

Our opinion is expressed only with respect to the General Corporation Law of the State of Delaware. We express no opinion to the extent that any other laws are applicable to the subject matter hereof, and express no opinion and provide no assurance as to compliance with any federal or state securities law, rule or regulation.

We consent to the use of this opinion as Exhibit 5.1 to the Registration Statement, and to the reference to our firm in the Registration Statement and any amendments or supplements thereto. In giving such consent, we do not admit that we are within the category of persons whose consent is required under Section 7 of the Securities Act or the rules and regulations thereunder.

This opinion is intended solely for use in connection with the issuance and sale of the Shares pursuant to the Registration Statement and is not to be relied upon for any other purpose or delivered to or relied upon by any other person without our prior written consent. This opinion is rendered as of the date hereof and based solely on our understanding of facts in existence as of such date after the examination described in this opinion. We assume no obligation to advise you of any fact, circumstance, event or change in the law or the facts that may hereafter be brought to our attention whether or not such occurrence would affect or modify the opinions expressed herein.

Very truly yours,

/s/ STRADLING YOCCA CARLSON & RAUTH LLP

STRADLING YOCCA CARLSON & RAUTH LLP