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Exhibit 23.1

CONSENT OF GRANT THORNTON LLP, INDEPENDENT REGISTERED PUBLIC
ACCOUNTING FIRM

        We have issued our reports dated March 11, 2008, accompanying the consolidated financial statements and schedule (which report expressed an unqualified opinion and contains an explanatory paragraph relating to the adoption of Financial Accounting Standards Board (FASB) Interpretation No. 48, "Accounting for Uncertainty in Income Taxes—An Interpretation of FASB Statement No. 109", FASB Statement No. 123 (revised 2004), "Share-Based Payment", and FASB Statement No. 158, "Employers' Accounting for Defined Benefit Pension and Other Postretirement Plans") and management's assessment of the effectiveness of internal control over financial reporting included in the Annual Report of Polymer Group, Inc. on Form 10-K for the fiscal year ended December 29, 2007. We hereby consent to the incorporation by reference of said reports in the Registration Statements of Polymer Group, Inc. on Form S-3/A, Amendment No. 2 (File No. 333-145138, effective November 11, 2007) and Form S-8 (File No. 333-131156, effective January 20, 2006).

/s/ GRANT THORNTON LLP
Columbia, South Carolina
March 11, 2008

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Exhibit 23.1