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  <xs:element id="tdup_GiftCardBreakageMember" abstract="true" name="GiftCardBreakageMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="tdup_SiteCreditMember" abstract="true" name="SiteCreditMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tdup_DiscontinuedOperationCostMethodInvestmentRetainedAfterDisposalOwnershipInterestDisposed" abstract="false" name="DiscontinuedOperationCostMethodInvestmentRetainedAfterDisposalOwnershipInterestDisposed" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="tdup_RevenueRemainingPerformanceObligationExpirationPeriod" abstract="false" name="RevenueRemainingPerformanceObligationExpirationPeriod" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="tdup_ContractWithCustomerLiabilityCurrentConversionPeriod" abstract="false" name="ContractWithCustomerLiabilityCurrentConversionPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="tdup_ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance" abstract="false" name="ContractWithCustomerLiabilityRevenueRecognizedIncludingOpeningBalance" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tdup_SellerPayableLiabilityCurrentRevenueRecognized" abstract="false" name="SellerPayableLiabilityCurrentRevenueRecognized" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tdup_ComputerEquipmentAndSoftwareMember" abstract="true" name="ComputerEquipmentAndSoftwareMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tdup_GiftCardAndSiteCreditLiabilitiesCurrent" abstract="false" name="GiftCardAndSiteCreditLiabilitiesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tdup_AccruedVendorLiabilitiesCurrent" abstract="false" name="AccruedVendorLiabilitiesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tdup_AccountsReceivableAllowanceForReturnsCurrent" abstract="false" name="AccountsReceivableAllowanceForReturnsCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tdup_WesternAllianceBankTermLoanAndSecurityAgreementMember" abstract="true" name="WesternAllianceBankTermLoanAndSecurityAgreementMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tdup_DebtInstrumentMaximumBorrowingCapacity" abstract="false" name="DebtInstrumentMaximumBorrowingCapacity" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="tdup_DebtInstrumentFloorPercentage" abstract="false" name="DebtInstrumentFloorPercentage" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:percentItemType"/>
  <xs:element id="tdup_NumberOfVotesForEachShareOfCommonStockHeld" abstract="false" name="NumberOfVotesForEachShareOfCommonStockHeld" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="tdup_StockholdersEquityConversionOfStockRatio" abstract="false" name="StockholdersEquityConversionOfStockRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:sharesItemType"/>
  <xs:element id="tdup_OperationsProductAndTechnologyMember" abstract="true" name="OperationsProductAndTechnologyMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tdup_MarketingMember" abstract="true" name="MarketingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types1:domainItemType"/>
  <xs:element id="tdup_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTermAbstract" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTermAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="tdup_DisposalGroupIncludingDiscontinuedOperationOtherOperatingIncomeExpenseNet" abstract="false" name="DisposalGroupIncludingDiscontinuedOperationOtherOperatingIncomeExpenseNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
