Hell, my cat, George, has wavy hair that constantly has mats. He is groomed daily. We live at 7100 ft and night temps in summer rarely go above 60 so his fur is long year round. When I bath him his hair is looks like it been crimped with a small toothed crimping iron. I use a leave in conditioner and leave for 12-24 hrs before bathing. I use shampoo that barely suds and use a spray conditioner before blow drying. Mats still🥲 I’ve had him completely shaved the past two summers and I can see where mats had been still. It’s his fuzzy under coat stuck together still. I brush with detangler bathe him and can’t get out. I’ve spent 150 on different products. I started with professional products. I’ve stuck with shampoo and conditioner that’s professional. He’s really good in the bathe so I know all shampoo and container are out. Please any advice would be so appreciated!!!!! I’ve spent 30 dollars a bottle for products. He’s 85% Maine cone did DNA test. No other breed came up just other countries of origin.