BINGPET Velvet Red Bowtie Gentleman Suit Boy Dog Tuxedo Harness Vest for Dogs with Handle Medium size:Neck girth 13", Chest girth 15-20".Please measure your pet as attachment before order.If your pet size at the end of border.Advise you choose the up size. 100% cotton exterior, 100% polyester mesh interior for comfort. Secured by a simple slide-down clip Easy step-in design Black and white with two buttons on exterior and red bowtie, giving gentle look to this dog tuxedo harness.