We have a blue tick mix that also hates the cold weather. We got this coat for him and it is very warm!
Hurtta Extreme Warmer Dog Winter Coat https://www.amazon.com/dp/B07GZ1VF8X/ref=cm_sw_r_cp_api_glt_fabc_052B7W3H9A8EWKCKSWZ6?_encoding=UTF8&psc=1