Pieridae Pure 100% Egyptian Cotton Standard Duck Egg Fitted Bed Sheet. This Egyptian Cotton percale fabric is produced with the finest high quality 200 thread count yarns, to give the ultimate soft handle and durability that will last wash after wash. Choose from either a standard box depth or extra deep box depth and in colours White, Ivory or Duck Egg. If you require extra deep fitting please browse to our deep filled bedsheets. See our bedsheet size information for all sizes available.