Love for Lambchop? Check out this Perfect Pet Accessory – including adjustable straps with sizes for most dogs XS: Weight: 2.64 ounces Dimensions: 2.64 x 10.75 x 1 inches Small: Weight: 3.88 ounces Dimensions: 3.88 x 13.5 x 1 inches Medium: Weight: 4.94 ounces Dimensions: 4.94 x 16 x 1 inches Large: Weight: 6.88 ounces Dimensions: 6.88 x 19 x 1 inches XL Size: Weight: 7.59 ounces Dimensions: 7.59 x 20 x 1 inches