Fi Compatible BREAKAWAY Collars

3/4" Fi collars are here!

Our best-selling breakaway collars, now available with Fi endlinks to pair perfectly with your Fi GPS tracker collar module. Fi modules sold separately.

Fi Series 1 & 2 are permanently sold out. We cannot get more Series 2 endlinks. If you would like to send us your own Series 2 endlinks, please contact us through the contact form to arrange for that.

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12 products
  • Fi GPS Holder | 2-Tone | Make any Collar or Harness Fi-Compatible! | Fi Series 3
    Fi GPS Holder | 2-Tone | Make any Collar or Harness Fi-Compatible! | Fi Series 3
    Fi GPS Holder | 2-Tone | Make any Collar or Harness Fi-Compatible! | Fi Series 3
    $30.00
    $30.00
  • Chicago Screws | Replacement Screws for Fi Holder
    Chicago Screws | Replacement Screws for Fi Holder
    Chicago Screws | Replacement Screws for Fi Holder
    From $2.25
    From $2.25
  • Biothane Fi Compatible BREAKAWAY Collars | WITHOUT buckle | Series 3
    Biothane Fi Compatible BREAKAWAY Collars | WITHOUT buckle | Series 3
    Biothane Fi Compatible BREAKAWAY Collars | WITHOUT buckle | Series 3
    $44.00
    $44.00
  • Fi GPS Holder | Make any Collar or Harness Fi-Compatible! | Fi Series 3
    Fi GPS Holder | Make any Collar or Harness Fi-Compatible! | Fi Series 3
    Fi GPS Holder | Make any Collar or Harness Fi-Compatible! | Fi Series 3
    $27.00
    $27.00
  • Reflective Biothane Fi-Compatible Breakaway collar| Ready To Ship | Red | Large 17"-23"
    Reflective Biothane Fi-Compatible Breakaway collar| Ready To Ship | Red | Large 17"-23"
    Sale
    Reflective Biothane Fi-Compatible Breakaway collar| Ready To Ship | Red | Large 17"-23"
    $35.00
    $35.00 $48.00
  • Biothane - Fi-Compatible Breakaway Dog Collars | 8 colors | 3 widths
    Biothane - Fi-Compatible Breakaway Dog Collars | 8 colors | 3 widths
    Biothane - Fi-Compatible Breakaway Dog Collars | 8 colors | 3 widths
    $45.00
    $45.00
  • Biothane - REFLECTIVE Fi-Compatible Breakaway Dog Collars | 4 colors | 2 widths
    Biothane - REFLECTIVE Fi-Compatible Breakaway Dog Collars | 4 colors | 2 widths
    Biothane - REFLECTIVE Fi-Compatible Breakaway Dog Collars | 4 colors | 2 widths
    $48.00
    $48.00

    2 total reviews

  • Fi-Compatible Semi-BREAKAWAY Reflective Quick Release Martingale Dog Collar | Solid or Reflective | 20 colors
    Fi-Compatible Semi-BREAKAWAY Reflective Quick Release Martingale Dog Collar | Solid or Reflective | 20 colors
    Fi-Compatible Semi-BREAKAWAY Reflective Quick Release Martingale Dog Collar | Solid or Reflective | 20 colors
    From $40.00
    From $40.00

    2 total reviews

  • PRINTS - Fi Compatible BREAKAWAY Collars | 20+ prints | without buckle | Series 3
    print choices
    PRINTS - Fi Compatible BREAKAWAY Collars | 20+ prints | without buckle | Series 3
    $34.00
    $34.00
  • Fi Compatible BREAKAWAY Collars | Solid or Reflective | 20 colors | without buckle | Series 3
    Fi Compatible BREAKAWAY Collars | Solid or Reflective | 20 colors | without buckle | Series 3
    Fi Compatible BREAKAWAY Collars | Solid or Reflective | 20 colors | without buckle | Series 3
    From $32.00
    From $32.00

    1 total reviews

  • PRINTS - Fi Compatible BREAKAWAY Collars | 25 prints | Series 3
    print choices
    PRINTS - Fi Compatible BREAKAWAY Collars | 25 prints | Series 3
    $38.00
    $38.00

    2 total reviews

  • Fi Compatible BREAKAWAY Collars | Solid or Reflective | 20 colors | Series 3
    Fi Compatible BREAKAWAY Collars | Solid or Reflective | 20 colors | Series 3
    Fi Compatible BREAKAWAY Collars | Solid or Reflective | 20 colors | Series 3
    From $36.00
    From $36.00

    3 total reviews