The Eco Vest Harness is a step-in harness, with a backside hook & loop closure and quick release buckle. Though the chest size is not adjustable like the "over the head" type A harnesses, some people have found this harness to be more comfortable and easier to put on the dog. This fashionable spring and summer harness features a Eco-friendly harness made from recycled polyester fabric. Matching leashes available and sold separately. Available in Beige and Khaki in sizes ranging from Small to XX-Large. Note: Unlike human clothes, pet apparel designers have different sizing characteristics. Please do not purchase a Puppia harness based on the size of another manufacturers/designers.