Classic Brat Seat Tuck 'N Roll Vintage Brown 85. 

These Brat Seats are awesome! The come with multiple mounting points. The base plate is from ABS and the foam is sturdy and nice to sit on. 

The seats are made of PU (skai) leather due to the fact this will better handle rain and sun. It also helps in the price as you may have noticed. The quality is superb and it does complete every Brat Bike.

The base plate + foam are like on a modern bike (see pictures) and make the seats strong and light weight. No rust here!