The apparel and textile industry faces pervasive opacity along its global supply chains, with fragmented data across disparate systems, limited end-to-end provenance, and rising compliance and ethical concerns. We present a comprehensive framework called Blockchain and ERP-Integrated MIS (BE-IMIS) designed to deliver transparent, auditable, and efficient supply chains for apparel and textiles. BE-IMIS combines a permissioned blockchain layer for immutable provenance, an enterprise resource planning (ERP) core for transactional data, and a management information system (MIS) layer for analytics and decision support. The architecture supports GS1-compliant data exchange, IoT/ RFID-enabled traceability, and smart contracts to enforce business rules and certifications. We detail the reference architecture, data model, governance, integration strategy with ERP (e.g., SAP S/4HANA), and MIS tools, and provide an evaluation plan along with preliminary findings from a lab-based pilot. Our contributions include [1] a layered, interoperable architecture for ERP–MIS–blockchain integration in apparel supply chains, [2] a scalable data model and smart contracts for end-to-end provenance, [3] a practical integration blueprint leveraging industry standards, and [4] an evaluation framework to quantify improvements in traceability, data integrity, and audit readiness.