Our Gem Super Heavy Weight Bonnets are made from a very plush, terry bath towel material. This is a SUPER HEAVY WEIGHT BONNET, not just a Heavy Weight - there is a big difference. The Gem Orbital Bonnets will last longer than every other bonnet on the market and your application/removal will be far superior!! These are the finest of any orbital bonnet s on the market and are made to last through many applications and washings. To be used with our Gem Orbital Buffers.