No Slip The underside is a super grippy textured foam surface. These things seriously don't budge! No Stink FLAT SOCKS create a moisture-wicking barrier that saves your shoes from becoming a stinky swamp! No Show While you're out rockin' your FLAT SOCKS, they're your shoe’s best-kept secret! Richness Get the feel of a soft wool sock while freeing your feet and going sockless. These Dark Heather Grey FLAT SOCKS are the real deal. They feel as good as they look; soft, cozy, cushy, giving a much more natural feel underfoot. If you come from a heritage of softer socks and want the same feel as you go sock-free, these are your FLAT SOCKS. Top Fabric Material: 100% polyester microwool shop all microwool FLAT SOCKS