Tr3e is daily collection management for design-led fashion brands. Every style sits in one collection with its colours, sizes, materials and live cost, so the team knows the margin while the design can still change. The line plan shows every style's status, owner and deadline. Purchase orders come straight from the product data, in the supplier's currency. Tr3e creates SKUs, GTINs and GS1 barcodes for every size and publishes Digital Product Passports from the same data. Suppliers see only their own styles and orders. Tr3e also works inside Claude, ChatGPT and Copilot, so teams can ask about the collection and make changes by chatting. A team sets it up in an afternoon, and the first month is free.