EXHIBIT 23
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in the Registration Statement on Form S-8 (No.
333-41770) dated July 19, 2000 pertaining to the Blair Corporation Employee Stock Purchase Plan and
in the Registration Statement on Form S-8 (No. 333-41772) dated July 19, 2000 pertaining to the
Blair Corporation 2000 Omnibus Stock Plan and in the Registration Statement on Form S-8 (No.
333-118195) dated August 8, 2004 pertaining to the Blair Corporation 2000 Omnibus Stock Plan of our
reports dated March 15, 2007, with respect to the consolidated financial statements and schedule of
Blair Corporation and Subsidiaries, Blair Corporation and Subsidiaries managements assessment of
the effectiveness of internal control over financial reporting, and the effectiveness of internal
control over financial reporting of Blair Corporation and Subsidiaries, included in the Annual
Report (Form 10-K /A) Amendment No. 1 for the year ended December 31, 2006.
/s/ Ernst & Young LLP
Buffalo, New York
April 23, 2007
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