Red Dingo Dog Harness Large neck circumference : 18,1- 29,9 in chest circumference : 20,8 - 30,7 in Red Dingo dog harness Webbing - Premium nylon webbing, woven from quality fine yarn for a softer feel. Densely woven edges for maximum abrasion resistance. Exceeds ISO standards for washing and UV colour fastness. D-Rings - Fully welded from solid stainless steel. D-rings will not rust and therefore will not discolour pet"s fur. Bucklebone - An original Red Dingo trademark and registered design. "Bucklebones" are designed not only to look good, but to be amongst the strongest side release buckles used in the pet industry.