Dreher Seat Pad At 1 oz. this is the lightest weight seat pad we offer. Its thickness is 1/3" and it still is the best value for the price.This is the lightest weight seat pad we offer. Its thickness is 1/3" and it still is the best value for the price. This seat pad has a heat bonded fabric cover and can be cut down easily to fit any sized seat. It is often used to build up height by purchasing several at a time. It is made from a closed cell foam to our design - Made in USA. Double backed tape included for your choice.