Limited Slip BioThane® Collar Collar Size | Width:L | 1" (15-20") Send us an email to

Send us an email to request a specific length

so we can make any necessary adjustments to our standard sizing

or if you just need more control

These martingale collars include authentic Fi end-links to attach to your Fi 3/3+ tracker

Constructed with 1

Limited Slip BioThane® Collar Collar Size | Width:L | 1" (15-20") Send us an email toTake your dog on any adventure with confidence, thanks to BioThane. Whether your dog loves to swim, hike, surf, or play in the mud, our BioThane gear is designed to keep up with your dog's active lifestyle. With a range of colors to choose from, you can find the perfect collar to match your dog's personality. The Limited Slip Collar is specifically designed with your dog's safety in mind. With a leash attached to the "live" d ring, this collar will