These socks are warm and cozy, but don't stay on very well -- they slide off my feet and I have to keep pulling them up.  I wear them mainly around the house, so maybe with a tight boot on, they would stay put better, but they wouldn't be my first recommendation.  I bought a pair of Thorlo socks from Amazon at the same time, and I LOVE them.  They stay on my feet, have great cushioning, and are super comfy.