BACKPACK ZIPPER SPECIFICATION — BUYER BRIEF Use one copy per opening and sample revision. Planning aid only; not a test method. Project / product reference: Opening location and intended use (main / laptop / pocket / other): Opening shape and desired access with representative contents: Single slider or two sliders; intended meeting position and travel direction: Proposed zipper supplier / series / chain type / nominal size (or options requested): Finished zipper length and measurement reference (confirm with supplier): Tape, element, slider and pull colours / finishes / codes: Pull shape, grip and branding proposal; removable parts if any: Lining, flap, seam and corner construction around zipper: Which details are required, proposed alternatives or still undecided: Representative contents and agreed sample review sequence: Sample ID / revision / date / reviewer: Observations: start, turn corners, close with contents, fabric catching, access: Photos / supplier response / corrections requested: Approval status and exact component + bag revision approved: Quotation reference, included hardware, exclusions and substitution process: Do not infer water resistance, strength, lifetime or regulatory compliance from zipper appearance. Define any needed performance assessment separately.