Wrist Velcro Straps on my Patagonia Shell?

Wrist Velcro Straps on my Patagonia Shell?

The wrist velcro straps on my Patagonia Shell are failing. Granted, my jacket is ~12 years old! The velcro fastener part still works fine, but the surface material is disintegrating and smears black goo all over my hands when it gets wet. It's icky and gross.