Great Bag ... even in winter.
over thanksgiving i was a little cramped in the family cabin/ranch house w/a dozen adults and two dozen kids so i took my bag & four season tent and ventured outside. we were just south of fish lake, ut w/ freezing temperatures. this bag held up nicely even in such cold weather. i'm 6'2 so the long bag was perfect length. i did layer up and have a pretty good pad to make it through the night, but nonetheless i was pretty impressed w/ the bag.