Material: Cloth Specifications Back length Bust Collar S 24cm/9.45″ 38cm/14.96″ 30cm/11.81″ M 28cm/11.02″ 42cm/16.54″ 33cm/12.99″ L 32cm/12.6″ 46cm/18.11″ 36cm/14.17″ XL 36cm/14.17″ 50cm/19.69″ 39cm/15.35″ 2XL 40cm/15.75″ 54cm/21.26″ 42cm/16.54″ Product features 1, fleece fabric to keep warm and comfortable, three-dimensional cut fit close to the body. 2. The fabric is windproof and waterproof, dirty and easy to clean, and the filling is down cotton. 3, chest zipper design, easy to wear, can be machine washed and washed. 4, with chest back clothes, go out do not need to extra chest back, walking the dog is safer.