I switch sides, and air them, but launder like everything else after weekly. They don't snag on the floor. They don't sag down on my skinny legs. My favorite aspect on almost every pair of Bombas socks is definitely the cushioned footbeds in its ankle socks and thicker hiking pairs. https://outward-hound-cat-toys17482.daneblogger.com/31715100/lenz-heat-socks-things-to-know-before-you-buy