Our new VelPro mesh dog harness is one piece non choking dog harness that utilizes a Vel Lock closure. This mesh dog harness is available in Red, Black, Blue and Pink. It is available in five sizes that fit dogs who measure from 11 inches to 20 inches around the chest. The size is determined by measuring the dog's chest just behind the front legs. Size XSmall fits a 11 to 12 inch chest. $20.00 Size Small fits a 13 to 14 inch chest. $20.00 Size Medium fits a 15 to 16 inch chest. $20.00 Size Large fits a 17 to 18 inch chest. $23.00 Size XLarge fits a 19 to 20 inch chest. $23.00 For correct fit please measure your dog's chest right behind the front legs, go all the way around.