Exhibit 3.1

AMENDED AND RESTATED

CERTIFICATE OF INCORPORATION

OF

PETSMART, INC.

FIRST: The name of the corporation (which is hereinafter referred to as the “Corporation”) is PetSmart, Inc.

SECOND: The name and address of the registered agent of the Corporation in the State of Delaware is The Corporation Trust Company, 1209 Orange Street, Wilmington, New Castle County, Delaware 19801.

THIRD: The purpose of the Corporation is to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of the State of Delaware, as from time to time amended.

FOURTH: The total number of shares of capital stock which the Corporation shall have authority to issue is 1,000, all of which shares shall be Common Stock having a par value per share of $0.01.

FIFTH: In furtherance and not in limitation of the powers conferred by law, subject to any limitations contained elsewhere in this certificate of incorporation, bylaws of the Corporation may be adopted, amended or repealed by a majority of the board of directors of the Corporation. Election of directors need not be by written ballot.

SIXTH: (a) The liability of the directors of the Corporation for monetary damages shall be eliminated to the fullest extent permissible under Delaware law.

(b) A director of the Corporation shall not be personally liable to the Corporation or its stockholders for monetary damages for any breach of fiduciary duty as a director, except for liability (i) for any breach of the director’s duty of loyalty to the corporation or its stockholders, (ii) for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of law (iii) under Section 174 of the Delaware General Corporation Law, or (iv) for any transaction from which the director derived an improper personal benefit. If the Delaware General Corporation Law is amended after approval by the stockholders of this Article SIXTH to authorize corporate action further eliminating or limiting the personal liability of directors, then the liability of a director shall be eliminated or limited to the fullest extent permitted by the Delaware General Corporation Law, as so amended.

(c) Any repeal or modification of this Article SIXTH shall be prospective and shall not affect the rights under this Article SIXTH in effect at the time of the alleged occurrence of any act or omission to act giving rise to liability or indemnification.