<SUBMISSION>
<ACCESSION-NUMBER>0001104659-05-018545
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20050425
<FILING-DATE>20050427
<DATE-OF-FILING-DATE-CHANGE>20050427
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>ALTDORF ROLF J
<CIK>0001253691
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-14330
<FILM-NUMBER>05777933
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>C/O POLYMER GROUP INC
<STREET2>4838 JENKINS AVE
<CITY>N CHARLESTON
<STATE>SC
<ZIP>29405
</MAIL-ADDRESS>
</REPORTING-OWNER>
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>POLYMER GROUP INC
<CIK>0000927417
<ASSIGNED-SIC>2221
<IRS-NUMBER>571003983
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0103
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>4838 JENKINS AVE
<CITY>NORTH CHARLESTON
<STATE>SC
<ZIP>29405
<PHONE>8037445174
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>4838 JENKINS AVENUE
<CITY>NORTH CHARLESTON
<STATE>SC
<ZIP>29405
</MAIL-ADDRESS>
</ISSUER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>a4.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-04-25</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000927417</issuerCik>
        <issuerName>POLYMER GROUP INC</issuerName>
        <issuerTradingSymbol>POLGA.OB</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001253691</rptOwnerCik>
            <rptOwnerName>ALTDORF ROLF J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>POLYMER GROUP, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>4055 FABER PLACE DRIVE, SUITE 201</rptOwnerStreet2>
            <rptOwnerCity>NORTH CHARLESTON</rptOwnerCity>
            <rptOwnerState>SC</rptOwnerState>
            <rptOwnerZipCode>29405</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Vice President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Option to Purchase Class A Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>6.00</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-04-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2010-04-25</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The options will vest in four equal annual installments, subject to achievement of performance measures, beginning on December 31, 2005, subject to earlier vesting upon a change of control.</footnote>
        <footnote id="F2">Options granted pursuant to Rule 16b-3.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Rolf J. Altdorf</signatureName>
        <signatureDate>2005-04-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
