A flocked Christmas tree is a type of artificial Christmas tree that is coated with a white or off-white substance, giving it the appearance of being covered in snow. Flocked Christmas trees are usually made from PVC, and the flocking material is typically a type of plastic polymer that's been treated to look like snow. The flocking material is usually applied to the tree by hand, giving it a unique and realistic look that can't be achieved with regular artificial trees. Flocked Christmas trees are becoming increasingly popular due to their realistic appearance and the fact that they don't require the maintenance that real trees do.