Aaron has used the Forty Below Camp Booties on Denali for over a month over the last few years. He talks about the feel, fit, and finish of the Camp Booties. He has stood in these booties at -30ºF and been perfectly comfortable at 14,000 feet (4,267 m) on Denali. He shows how they fit inside of your double mountaineering boots. Get Forty Below booties here: https://40below.com/product-category/camp-booties/ Get other items in this video from Amazon: Western Mountaineering down bootie: https://amzn.to/2sg1HRE La Sportiva Baruntse: https://amzn.to/2QXbarC