1.The dog raincoat with hood is very lightweight, it is not load for the dog. 2.On the hood and on the back there are reflective stripes, then it is safe when the dog runs in the dark with the dog raincoat with harness hole. 3.The mesh lining is breathable, the dog will feel comfortable. 4.The dog raincoats waterproof is made of durable fabric,it is folding and portable. Size charts: Size L Length 35 cm(14in) / Chest circumference 48-52 cm(19-20.5in) / Neck circumference 28-32 cm(11-12.6in) Size XL Length 38 cm(15in) / Chest circumference 50-58 cm(19.7-22.8in) / Neck circumference 32-38 cm(12.-15in) Size 2XL Length 43 cm(17in) / Chest circumference 52-60 cm(20.5-23.6in) / Neck circumference 34-40 cm(13.4-15.7in) Size 3XL Length 50 cm(20in) / Chest circumference 66-70 cm(26-27.6in) / Neck circumference 42-44 cm(16.5-17.3in) Size 4XL Length 59 cm(23.2in) / Chest circumference 75 - 78 cm(29.5-30.7in) / Neck circumference 48-50 cm(19-19.7in) Size 5XL Length 70 cm(27.6in) / Chest circumference 86 - 89 cm(34-35in) / Neck circumference 54 - 56 cm(21.3-22in) Size 6XL Length 76 cm(30in) / Chest circumference 90-96 cm(35.4-37.8in) / Neck circumference 58-62 cm(22.8-24.4in) Please note that you should get the dog coat at least 2-3 cm larger than the size of your dog.