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Metal zippers size #3

Zipper Sizing - Simplified

Zipper size is determined by the width of the teeth.

#3: Thin zipper, ideal for small accessories and inner pockets (3mm teeth).

#5: Standard size zipper for bags, fanny packs, and backpacks (5mm teeth).

Additional sizes:

  • #8 and #10 are also available in metal and plastic zippers (thicker teeth).


  • Choose a zipper size that is appropriate for the material and weight of your bag.
  • Thinner zippers are lighter, but less durable.
  • Thicker zippers are more durable, but can also be heavier.

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