My feet are always cold when snowshoeing. I have tries a number of combinations of socks, boots, and liners. Nothing works for a day in the bush. After much research of many people more experienced than me I came upon Lure of the North on YouTube. I watched their videos and am convinced this is the solution. Dave answered all of my questions and the order arrived withing 3 days. You can't ask for anything more or better. The instructions are comprehensive and the videos take it one step further. I am looking forward to warm feet...for a change!