mounted on a caterpillar tractor tread?
A duvet is like a giant pillow case for a fluffy comfortor, like one made of downUsually down comfortors are white, like a pillow, therefore it needs to be covered.
A duvet is a cover for your comforterIt keeps your comforter clean, you only have to wash the duvet.
It's a polyester fiberfill or down filled comforter with a removable, typically washable coverThey also sell duvet covers so you can change the style of your bedding without having to buy another duvet filler.
The 3 latest replies remind me of a conversation I had while visiting Myrtle BeachDuvet is French for down in regards to the feathers of a bird, it is the bag filled with down or feathers, depending on price paid for a duvetUsually a cover is put over the duvet to facilitate cleaning and compliments the decor at the same timeSince a duvet would usually require dry cleaning, it is more reasonable to remove the cover for washing than send the whole duvet to the cleanersAs far as summer or winter use, great in both extremesThis is something you should shake to loosen the down, much as a dog does when going outside or coming in, acts as in insulation against cold and hotLiving in Canada, we use ours 24/7You can now find duvets with down treated against allergies and with a 300 or more count exterior, not much dust penetrates and if you have a 300 or more count cover for the duvet, even better.
this has got to be the craziest question, but i think the closest you will get to that is the sewer pipeing they lay down for mediem sized neighborghoods, their about 20-30 ft long i dont know how much they weigh but they resemble lipstick tubes and they leave them on the side of the road a few days before construction begins