The Collar That Does It All: Fi Series 3 + BioThane
No More Choosing: Get Both Performance & Durability
Built for Adventure Dogs
Hiking • Swimming • Beach days • Muddy trails - Always ready
Why 9800+ Customers Love BioThane
Waterproof • Odor-Free • Outlasts Leather"
Join 9,800+ Happy Dog Owners
★★★★★ 4.8/5 Stars • See Why They Love BioThane
Shop Our Bestsellers
Fi Series 3 Quick Release Collar
Perfect for Fi GPS trackers • 100% Waterproof
Fi Series 3 Buckle Collar
Traditional security • Fi compatible • Waterproof
BioThane Traditional Leash
5-foot length • Easy clean • Multiple colors
Two-Tone BioThane Collar
Stylish design • Waterproof • Custom colors
Paws Down, the Best Reviews
"This collar is everything it promises! The colors are so vibrant, the Fi attachment is secure. The quality is incredible and metal accents hold up very well to all the shenanigans my pup gets into."
- Savanna C.
"My pup is an avid swimmer and I love that I can rinse his collar and leash off easily without them getting that stinky smell. We get sooo many compliments on how classy the set looks together!"
- Willa T.
"Great collar for the Fi. Our dog is very active and likes to run through brush and swim. The collar has held up extremely well and doesn't show any damage or fading."
- Fred R.
Why BioThane is Better
100% Waterproof
Never absorbs moisture, odors, or bacteria. Perfect for swimming, rain, and muddy adventures.
Easy to Clean
Wipes clean in seconds. No special care, conditioning, or maintenance required.
3x Stronger
Outlasts leather and nylon. Built to withstand years of active use and adventures.
No More Smelly Slip Leads
BioThane never absorbs odors, bacteria, or moisture