These were actually pretty easy to install, but the rubber inserts do not fit my 2015 Crosstrek rails. Metal has not corroded yet. Shearling Lined: These are NOT Shearling lined but lined with cheep polyester something. I love barefoot dreams I have several blankets. Brilliant material and build qualityHinge works well and fits well with my magnetic charge connectorSo glad I went with this one out of the many on Amazon! This is my second pair of Trotters shoes. Bucks let alone almost 200. RedPort really should address that. And it doesn’t quickly drain the device it’s connected to via Bluetooth. It is also easily removable if you prefer a more streamlined look.