MUST READ: Personalized products are not returnable. Measure accurately & use size chart. MUST READ SIZE INSTRUCTIONS: To find the perfect size kindly measure your dog's neck and chest BEFORE YOU BUY and ensure these two measurements fall within the numbers listed in the size chart. The neck is not adjustable so please ensure the head is at least the same size as the neck so that the neck opening can slide over the head. If your measurements fall at the end, go up one. TIP: Message Seller for size help before you buy, include measurements. PERSONALIZATION: Get the look you want by choosing from an array of eye-popping thread colors and a monogram lettering style which we constantly update with the newest trending fonts! Check out the cool new fonts & brand new NEON thread colors! COLORS: Our multicolor harness colors are available in purple, turquoise blue, pink, lime green and orange. DISCOUNTED REDO'S For those who guess on the size and get it wrong, we offer discounted REDO'S. With our REDO policy, you can buy with confidance! PRODUCT INFO: Sassy Dog Fashion's handmade air mesh, adjustable pet dog vest style harness is safe, lightweight, breathable and comfortable to wear. This durable polyester dog harness makes a great personalized pet gift so it comes with a NAME custom embroidered on the chest for all to see. The chest strap is adjustable to ensure a snug fit. It's suitable for dogs, cats and growing puppies and makes a great lightweight, breathable cool dog harness that no one else will have but you. ADJUSTABLE BLACK CLIP HARNESS: The chest strap is adjustable to ensure a snug fit and the breathable mesh is durable, long lasting and machine washable. The back clip harness is suitable for walking or training dogs, cats, puppies and kittens.