Bought these here this winter and have only tried them on at home. They are awesome, just not needed. Here's the thread where I snagged em:
Goosefeet down pants
Specs are .51oz cuben, 3oz 900FP down, and 142g/5oz on my scale. 30x30" to about 32" max waist with the elastic stretch.
Here's a pic I took and there is another on the previously referenced thread
***SOLD***Asking $175 including lower 48 shipping but buyer is responsible for Paypal fees.
I'll throw in a suitable stuffsack, maybe even cuben.
emails are preferable at: truax_n AT yahoo DOT com