Size Details - 2XS Chest: 28-32cm/11-12.6in; XS Chest: 32-36cm/12.6-14.2in; S Chest: 36-44cm/14.2-17.3in; M Chest: 44-48cm/17.3-18.9in; L Chest: 48-54cm/18.9-21.3in. Reflective Design - 2 reflectives front straps, enhance the visibility of your dog in dark, improves safety when walking at night to keep your dog safe. Breathable & Lightweight - Ultra soft and highly durable and light-weight soft breathable air-mesh with smooth edges treatment to reduce rubbing and pulling on your dog's legs and neck, make your dog walk comfortably. Easy on and off - This Step-in harness is easy to put on and off with its 2 fast-release buckles and magic tape, 2 duty D rings on back can attach leash when you take a walk. Ideal for dogs that they don't like harness go over their head. Only need toput dog's front feet into the hole, close the hook and loop fastener and snap the buckle. Super easy to use! 2 Choice - We offer: 1 Harness Only, or Set of Harness with 1.5m Leash. Perfect for puppy, small, and medium breeds. If you have any question, please contact us and we will resolve it immediately. Your satisfaction is our first priority. Size Name:2XS Chest: 28-32cm (Pack of 1) | Colour Name:Black-Gray Package Included:Set of Harness with 1.35m Leash