DIFFERENT DESIGN: The harness is adopted with a plaid pattern which is designed by our internal brand team, so it's unique and very different from other normal harnesses. This plaid pattern looks both classic and stylish and is never out of date. It's great for everyday walking or going to a holiday party. It makes your furry friend look so lively and cute QUALITY MATERIALS: Made of premium polyester and cotton materials, it's adopted with an air-mesh design, so it's very lightweight and breathable. The soft edge keeps the dog always comfortable, it's no pull and no choke. And sturdy webbings make sure the harness can be used for a long period. The metal D-ring will connect to the matching leash to keep the control by you ALL DAY & ALL SEASONS WEARING: This harness leash set is very lightweight, soft, and breathable, even after a full day of wear, it won't make your dog feel uncomfortable and will still stay active. Besides, the harness fits four seasons wearing, keeps the dog cool in summer, and it offers warmth to your dog in winter SIZE GUIDE: [XS: Neck 10", Chest 10"-14"], [S: Neck 12", Chest 14"-18"], [M: Neck 14", Chest 17"-21"], [L: Neck 17", Chest 18.8"-24"]. Sizing does NOT directly correspond to your pet's breed or weight, and do NOT order the usual size directly, please always measure your dog and refer to our brand size chart! [ATTENTION]: The neck is not adjustable, please make sure your dog's head can through the harness