Black Yellow Julius-K9 IDC harness, Size 1 (L) Breathable Skin-friendly lining Reflective elements Replaceable side labels Closable handle Tested materials Unbreakable buckle Inspected straps from Germany Fasteners made from Swiss material To adjust the velcro chest strap developed by Julius-K9 in 1997, open it and loop it through the oval ring which is on the front side of the harness. Close it on the inner side so the velcro’s hooks and loops are facing each other. Set between the minimum and maximum length settings, the chest strap can support several times the dog’s weight.