Originally Posted by Rapt
I like hybrid insulation systems... But would be tempted to use them in a layered fashion, and in separate pieces so they can be used in various combinations. Allowing you to tune your quilt system and warmth to the ambient.
thats what I was thinking - could use just the down, or just the synthetic, or both combined. withthe right thicknesses you could have a synthetic UQ good for 50-60*, and down good for 30-40*, and a combined system good for <15*