First of all, I got these to take with me winter alpine climbing. My feet tend to get quite cold in my sleeping bag within my bivy bag within a snow trench laying on the snow. I got these guys because they're smaller than the others and I assumed they'd compress very well. And they do! They are also very warm. They have definitely achieved my purpose in getting them. I had no intentions (and still don't) on using them to walk around camp in the snow. They wouldn't work well for that (but that's what the others are for). Walking around camp I tend to wear my boots loosened up. So if this is what you're looking for, these guys will give you a super lightweight option that will serve you well.