Fi Compatible Series 3 Waterproof Dog Collar | SeaFlower Co
Fi Compatible Series 3 Waterproof Dog Collar | SeaFlower Co
Fi Compatible Series 3 Waterproof Dog Collar | SeaFlower Co
Fi 3 compatible collar with COBRA buckle | SeaFlower Co
Fi Compatible Series 1,2 or 3 - BioThane® Side Release Buckle Collar (Not Adjustable)
Fi 3 compatible collar with COBRA buckle | SeaFlower Co

Fi Compatible Series 1,2 or 3 - BioThane® Side Release Buckle Collar (Not Adjustable)

  • Current Processing Time: 3-7 business days
SeaFlower Co is now an official partner for Fi compatible dog collars! Our collars have been Fi tested and approved for your next adventure! Enjoy our exclusive dog collar patterns while also enjoying the safety of your Fi GPS device.

Regular price$65.95
Due to this collar being custom made to your measurements & color preferences we cannot accept returns or exchanges. Please double check your measurements & feel free to email me with any questions prior to ordering at

Fi tracker is sold separately. If you don't have a Fi tracker, you can purchase one HEREUse our code: SEAFLOWER20 to save $20 off the activation fee from your Fi Series 3 purchase.

These 3/4" and 1" Fi compatible collars are made "over the band" style with the 3/4" width authentic fi end links. This style gives your Fi device extra protection, & allows the collar to still be functional without the Fi tracker attached.

Please be sure to follow our "how to measure" guidelines below to ensure you get the perfect fit for your pup as these style collars are not adjustable.

  • Made with super heavy 3/4" or 1" BioThane®
  • 100% waterproof, anti-microbial, & very durable- built for any adventure from sea to summit
  • Low maintenance- Wash in soapy water or just spray off with the hose and, BOOM, it's as good as new. BioThane® is easy to clean in just a few minutes.
  • BioThane® has a soft, easy-to-grip feel & is very pliable even in the coldest weather.
  • Reinforced with heavy duty screws at all stress points to ensure for the strongest hold. We believe screws are the most durable as the threads are tightened & reinforced to ensure your collar will never come apart

    Click here to add a BioThane® Leash

    Ordering Instructions: It is very important to carefully measure your pup's neck to get an accurate measurement as these collars are NOT adjustable. The best to way to measure for these style collars is with a soft measuring tape or string. Gently wrap the tape or string around your dog's neck where the collar naturally sits. The tape should be snug but not too tight. If your dog has very thick fur be sure to get the tape closer to the skin.  After you get your dog's exact measurement, you can then loosen the string about 0.5"-1" to see how the collar would fit with a bit of length added. We recommend you add at least .5-1" to your dog's exact neck measurement to include room for comfort. 

    If you are measuring your pup's current collar that fits well, please be sure to follow our "how to measure current collar" guidelines below. 

    Want a looser fitting collar? Order your collar 1-2" larger than your dog’s actual neck size. 

    If you are having trouble finding your pup's neck size, please don't hesitate to email me with pictures of your pup's current collar next to a ruler/tape measure for me to help you determine the best size.  DO NOT submit an order if you are unsure of sizing, please email me with any questions at

    Size Guide
    BioThane color combos

    Stainless Steel: Known for its strength, durability, & low maintenance attributes. Perfect for all those salty beach adventures, & the best option if your pup is hard on their gear.

    Black Metal: A great option for upgrading the look of your collar. However, keep in mind, any coated hardware will show wear overtime. Made from heavy duty solid brass & zinc alloy hardware, which makes it rust & corrosion resistant.

    Please Note- our plastic buckle and COBRA® buckles will be black, regardless of which hardware finish you choose.

    Safety & durability is our top priority at SeaFlower Co. We use high quality materials and durable, thoroughly tested hardware for all of our products. Our products are made with ruff play in mind, but no pet gear is indestructible. Please inspect your equipment regularly for any signs of wear and tear & replace when necessary. It is the buyer’s responsibility to determine what gear is appropriate for their dog’s size, strength, and activity level. SeaFlower Co is not liable for any injuries or damage that may occur as a result of use.

    Customer Reviews

    Based on 3 reviews
    Molly’s Mom

    Love my pup’s new biothane Fi collar and leash from Sea Flower! Super high quality! Beautiful. Durable. I actually just bought another collar! You won’t be disappointed.

    Jennie Hantzmon
    Great collar, fun selection of colors and prompt delivery.

    Well made collar. Good color choice. Quick delivery.

    Carla Steele
    Stylish yet functional collar

    Colors are attractive and biothane holds up to daily swimming with no odor. April at Seaflower was wonderful to work with and she made suggestions for the collar to make it exactly what I wanted. I would highly recommend.

    We love seeing your pups styling in our gear!

    Tag us in your pictures on Instagram & Facebook for a chance to be featured on our page!

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