The cover is sewn from quality polyester, which is both water-repellent and breathable. The cover has Back on Tracks Infrared reflective heat effect as there is woven ceramic fabric on the inside of the cover, our well-known Welltex. There are reflectors on both sides of the blanket, for greater safety. It is possible to adjust the front of the blanket for optimal fit. Elastic leg straps for the hind legs. There is a hole in the neck of the blanket for a dog leash, as well as a zip for the tail, so it can also be used for dogs that hold their tails high. To find the correct size, measure the dog from shoulder blade to root of tail. Back length 31 cm Back length 34 cm Back length 37 cm Back length40 cm Back length 43 cm Back length 46 cm Back length 49cm Back length 52 cm Back length 55 cm Back length59 cm Back length63 cm Back length 67 cm