I wasn't sure of the size so I bought two
Catch and release on the XL
Reported as having a low HH of less than 100mm and a permeability of over 100CFM
So suitable for hard work where rain isn't expected, eg snow and ski touring etc
Weighs just 165 grams and if you cut out the integrated stuff sack you could save 30 grams or so
Brand new with tags and asking less than I paid by 12%
$80- posted
If you need more details just ask