Synthetic Down is an insulation material which comes from synthetic fiber like polyester.According to fiber fineness there are different types of polyester staple fiber . But for down jacket filling solutions, micro fiber is the best solutions as micro fiber is more soft and light weight. By the blending of different denier polyester staple fibe ( specially 0.9D,2D,3D) synthetic down or fake down or crash down is produced.

There are lots of reasons to choose synthetic down as down jacket filling materials. But the main reasons are as follows:

1. Availability: Real Down is rare cause real down comes from duck or goose. On the otherhand synthetic down is a petro chemical product which is man made. So synthetic down is more available than natural down . Also the quality consistency of synthetic down is better than real down
2. Economical: Real Down is more expensive by comparing with synthetic down. Real down price is 15 to 20 times higher than synthetic down.
3. Sustainable: Now a days synthetic down is produced from recyclable PET bottle. So to save environment synthetic down plays a vital role as down jacket filling materials.Recently some bio degradable polyester fiber has introduced in the market to ensure sustainable practice in apparel sector.
4. Easy Wash: Natural down needs special care during wash. But synthetic down filling jacket can easy wash without keeping loss of original shaping of garments.
5. Quick Dry: Synthetic down is water resistant. So quick dry.
6. Hypoallergenic: Synthetic down is hypoallergenic .So it is more popular with allergic sensitive peopless.
7. Ethical Practice: Natural down collecting process is inhuman. On the otherhand synthetic down is cruelty free.