Pattern:SolidMaterial:Polyester BlendsSeason:Spring/SummerFeature:PersonalizedBrand Name:NoneType:Otheris_customized:NoIs Smart Device:NoOrigin:CN(Origin)Type:DogsMaterial: PolyesterColor: BlueSuitable season: SummerSize:Size----Shoulder---------BustS ------35cm/13.78"---- 11cm/4.33"M ----45cm/17.72" ----13cm/5.12"L ----55cm/21.65"---- 16cm/6.3"Product features: a neck that cools dogs in a moment:1. the fabric is the cold sensing technology fabric which can resist heat and cooling;2. fabric principle: cool fabric adjusts temperature by absorbing heat, and cool factor brings a cool comfort to pets.3. the fabric does not contain chemical products, polymer materials, adhesives, crystals or phase change materials. The fibers used are safe and non irritating,Compared with ordinary moisture-proof fabric, this kind of fabric has the characteristics of light, air permeability and comfortable wearing.4. if it is put into water, twist dry, put it into the refrigerator for 10 minutes and then take it out, which will make the cooling effect more obvious.5. take the dog for a walk, exercise, mountain climbing and other essential items.