Form: SC 13G

Statement of Beneficial Ownership by Certain Investors

JOINT FILING AGREEMENT

Published on


EXHIBIT 99.1

AGREEMENT REGARDING JOINT FILING UNDER
UNDER RULE 13D-1(K) OF THE EXCHANGE ACT

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as
amended, each of the undersigned agrees to the filing on behalf of each of a
Statement on Schedule 13G, and all amendments thereto, with respect to the
shares of Common Stock, $0.01 par value of DECKERS OUTDOOR CORPORATION.

Date: February 12, 2008

/s/ James H. Simons
--------------------------------
James H. Simons


Renaissance Technologies LLC

By: /s/ Mark Silber
----------------------------
Mark Silber
Executive Vice President


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