If you are ordering a standard 16"x16" or 16"x18" size SunMate®, Pudgee® or Laminar™ cushion through our online store, but need it waterproofed, we now provide the option of selecting a silicone waterproof coating pre-applied to your cushion before shipping. Simply go to the Other Products > Covers and Coatings page and add the Waterproof Coating to your cart.