Specifications: Material: Polyester and Mesh Colour: Red, Black, Blue Size: XL:Chest Adjustable range: 43-52cm /16.92 - 20.47" XXL:Chest Adjustable range: 52-60cm /20.47 - 23.62" XXXL:Chest Adjustable range: 60-70cm /23.62 - 27.55" 4XL:Chest Adjustable range: 70-80cm /27.55- 31.49" Manual measurements, allowing 2CM/0.78" errorPackage Includes: 1 x Breathable Mesh Dog Harness With Chest Strap