Mermaid Scales BioThane® Leash Fi UV BioThane Martingale Constructed with UV printed BioThane®

Constructed with UV printed BioThane® in either 3/4" or 1" widths

This is the style that comes with your standard fi collar and is the recommended fi style for the new series 3+ to ensure you get the most optimal accuracy with its additional behavior monitoring features

Unleash the potential of BioThane®- 100% Waterproof - Dirt-Proof - & All Around Adventure-Proof

Available in 10ft-50ft lengths

Reinforced stitching with heavy-duty thread

Mermaid Scales BioThane® Leash Fi UV BioThane Martingale Constructed with UV printed BioThane®Take 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 & patterns to choose from, you can find the perfect leash to match your dog's personality. Constructed with super heavy BioThane in either 3 4" or 1" width 100% waterproof, anti microbial, & durable making them perfect for