<SEC-DOCUMENT>0001209191-23-057890.txt : 20231208
<SEC-HEADER>0001209191-23-057890.hdr.sgml : 20231208
<ACCEPTANCE-DATETIME>20231208160534
ACCESSION NUMBER:		0001209191-23-057890
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20231207
FILED AS OF DATE:		20231208
DATE AS OF CHANGE:		20231208

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Cramer Naomi
		CENTRAL INDEX KEY:			0001995947

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39667
		FILM NUMBER:		231475401

	MAIL ADDRESS:	
		STREET 1:		2005 E. INDIAN SCHOOL ROAD
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85016

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Leslie's, Inc.
		CENTRAL INDEX KEY:			0001821806
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-RETAIL STORES, NEC [5990]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		2005 E. INDIAN SCHOOL ROAD
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85016
		BUSINESS PHONE:		602-366-3817

	MAIL ADDRESS:	
		STREET 1:		2005 E. INDIAN SCHOOL ROAD
		CITY:			PHOENIX
		STATE:			AZ
		ZIP:			85016
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-12-07</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001821806</issuerCik>
        <issuerName>Leslie's, Inc.</issuerName>
        <issuerTradingSymbol>LESL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001995947</rptOwnerCik>
            <rptOwnerName>Cramer Naomi</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2005 EAST INDIAN SCHOOL ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PHOENIX</rptOwnerCity>
            <rptOwnerState>AZ</rptOwnerState>
            <rptOwnerZipCode>85016</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief People Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.00</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2023-12-07</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>21179</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>21179</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>109925</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each Restricted Stock Unit (&quot;RSU&quot;) represents the contingent right to receive, upon vesting of the RSU, one share of the Issuer's Common Stock.</footnote>
        <footnote id="F2">Represents a grant of RSUs, of which 21,179 will vest in equal installments on December 7, 2024, December 7, 2025, December 7, 2026, and December 7, 2027, subject to Ms. Cramer's continuous employment or service with the Issuer or an affiliate until the applicable vesting date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Brad A. Gazaway, as Attorney-in-Fact for Naomi Cramer</signatureName>
        <signatureDate>2023-12-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
