The thickness of this sock is more like a typical athletic sock, and like a good athletic crew, it gets high marks for both comfort and arch support. I would not characterize these socks as particularly thick, though they are thicker than a thin crew. A note about comfort - while this sock was sufficiently roomy for my size 8.5 c/d width feet, I suspect that if your feet are bigger than a women's (US) size 9, you may find the sock too short. It is a somewhat stretchy sock, but it's already getting towards the limits of its stretch on my size 8.5 feet. I do love the colors in the assortment I got. All the colors are marled shades. The darker blue goes really well with faded blue jeans, and the green (which is a fairly light green, but definitely not neon) is especially fun as an unexpected pop of brightness.
