

<!-- DFIN ActiveDisclosure(SM) XBRL Schema Document - http://www.dfinsolutions.com/ -->
<!-- Creation Date      : 2019-05-24T01:15:06.7371237+00:00 -->
<!-- Version            : 3.4.7044.22220 -->
<!-- Package ID         : a931aa2822f947f8ae60bf0107223d71 -->
<!-- Copyright (c) 2019 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
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  <xsd:element id="dxlg_VolumeWeightedAverageClosingStockPrice" name="VolumeWeightedAverageClosingStockPrice" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="dxlg_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsCostOfEquity" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsCostOfEquity" type="num:percentItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="dxlg_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTermAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="dxlg_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="dxlg_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceRangeLowerLimit" name="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceRangeLowerLimit" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="dxlg_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceRangeUpperLimit" name="AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareExercisePriceRangeUpperLimit" type="num:perShareItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="dxlg_RestrictedAndDeferredStockMember" name="RestrictedAndDeferredStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="dxlg_EarningsPerShareLineItems" name="EarningsPerShareLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="dxlg_EarningsPerShareTable" name="EarningsPerShareTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="dxlg_TimeBasedRestrictedStockMember" name="TimeBasedRestrictedStockMember" type="nonnum:domainItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="dxlg_UnvestedTimeBasedRestrictedStockSharesExcludedFromComputationOfBasicEarningsPerShare" name="UnvestedTimeBasedRestrictedStockSharesExcludedFromComputationOfBasicEarningsPerShare" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="dxlg_SharesOfUnvestedRestrictedStockOutstanding" name="SharesOfUnvestedRestrictedStockOutstanding" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" xbrli:periodType="instant" nillable="true" abstract="false" />
  <xsd:element id="dxlg_IncomeTaxesLineItems" name="IncomeTaxesLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="dxlg_IncomeTaxesTable" name="IncomeTaxesTable" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" nillable="true" abstract="true" />
  <xsd:element id="dxlg_FederalNetOperatingLossCarryForwardsExpirationPeriodMinimum" name="FederalNetOperatingLossCarryForwardsExpirationPeriodMinimum" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="dxlg_FederalNetOperatingLossCarryForwardsExpirationPeriodMaximum" name="FederalNetOperatingLossCarryForwardsExpirationPeriodMaximum" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
  <xsd:element id="dxlg_OperatingLossCarryforwardsExpirationYear" name="OperatingLossCarryforwardsExpirationYear" type="xbrli:gYearItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" abstract="false" />
</xsd:schema>