Harness designed to hold the dog by the thorax without exerting pressure on the neck. Very easy to put on and take off through the legs (step in), offering a very easy and quick hooking system to put on and take off. Its velcro closure allows a total adjustment to the dog's body and the click closure fixes the whole. The harness incorporates reflective strips to protect your dog during walks in low light or in the dark. The breathable mesh inside provides a cushioned, soft and resistant finish. Characteristics: Easy and quick to put on and take off. It adapts to the contour of the animal's body. Maximum security closure and reflective bands. Material: 100% high quality polyester. Interior with breathable double-grid mesh. Plastic click closure. Stainless steel rings. Machine washable. SIZE GUIDE Keep in mind that our size guide will give you a general idea of the size that best fits your dog. Each dog is unique in size and shape, so be sure to measure your dog before making your final size selection. SIZE NECK CHEST REFERENCES XXS 33.5-38.5cm 36.5-41.5cm Toy Poodle XS 39-43.5cm 42-47.5cm Chihuahua, Mini Pinscher, YorkshireS40.5-46cm48.5-53cmPomeranian, Jack Russell, CavoodleM44-50cm52-57.5cmDachshund, Mini Schnauzer, Shih TzuL48.5-54cm57.2-63cmScottish Terrier, Pug, French BulldogXL56-63cm66.5-73cmCocker Spaniel , Fox Terrier, English Staffy