Our Step-in harness is easy to get on and off as it does not have to go over the dog's head. The harnesses are designed with a focus on comfort for the dog and do not restrict the dog's range of movement. The harness is made of a soft and lightweight cotton material and has a reflective edge, as well as reflectors on the shoulders that ensure that the dog is visible during evening walks. The harness is adjustable - it can be tightened and loosened to achieve the best fit for your dog. Our step-in harness is made in 5 different sizes - see size guide: Chest size in cm approx. weight in kg XXS 31-37 <2kg XS 33-39 2-3kg S 38-44 3-5kg M 40-45 5-7kg L 46-59 7.5-14kg XL 59-70 14-20kg * note that the weight guide is for guidance only, as some dog breeds are more densely built than others