Fi Compatible 3/3+ Limited Slip Patterned BioThane® Collar With Buckle Collar Size | Width:M | 3/4" (14-16") 1" width for the top

1" width for the top layer

The in-line fi style is where the end links are attached inline with the collar band

Long lines are ideal for recall training & working dogs

Please keep in mind that

Constructed with standard beta BioThane® in either 3/4"

Fi Compatible 3/3+ Limited Slip Patterned BioThane® Collar With Buckle Collar Size | Width:M | 3/4" (14-16") 1" width for the topTake your dog on any adventure with confidence, thanks to BioThane the 100% waterproof, dirt proof, and adventure proof material. 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.