900 Filling Power Down: The higher filling power captures more volume, and provide more warm than other lower filling power down. This quality is supply few months only in a year.
Grapes Down: It named as like a bunch of grapes. This down are extremely warm, due to, the down interlock together by natural and kept air inside. It makes down products warm, but, less volume. This product suitable for extreme outdoor activity that requires in warm, light weight, and easy moving. However, this down need manual and supply is limited. Please inquire early.