Soft‎,‎ fray resistant nylon‎.‎ Provides a more comfortable fit and less pressure around neck than classic collars for easier training and outdoor activities‎.‎ Plastic side buckle on the chest strap that quickly clicks shut and stays put‎.‎ Designed with adjustable tri‎-glides chest straps for fast adjustment and customs fits for different girth sizes‎.‎ Heavy‎-duty stitching for lasting quality and two metal D‎-Rings for secure lead‎.‎ Solid and vibrant colors are easy to see‎.‎ Make sure to select the matching with DOCO™ leashes  to complete your buddies look‎!‎