Elise
Mayer
You can use rain jackets with reflective strip.It is heavy duty,waterproof vinyl guardian gear rain jacket keeps pets dry in wet weather.It saves you from the hassle of wet dog smell and extra coat maintanance.It is available in pink,orange,yellow and blue colour.Material used for that is 100% vinyl.It gives you a features like a drawstring hood,leash opening,and a handy back pocket with velcro flap closure,elastic leg straps and adjustable velcro belly strap ensure a secure and comfertable fit.Most interesting thing about this coat is in this coat specially added reflective strip on back provides extra visibility in the rain.You can also use ice blue outward hound designer rain jacket.It is the next generation pet's rain gear products.It has light weight ,breathable,microfibre fabric keeps your pet dry in the rain and warm in the wind.It is made with an inner mesh lining for added pet comfort in a wide range of weather conditions.Its adjustable design allows for a comfertable fit and non-restractive movement-can be put on or removed in seconds.It is waterproof and ready for any type of inclement weather,keeps pet dry.It is available in three stylish new colour combinations.It is perfect alternative to the traditional vinyl rain slickers that have been on the market for years.You can choose any between this two.I think you will satisfy with my answer and it protect the your large dogs in the rainy season from rain.