How we picked
Staying put came first, because it is the entire complaint people have about socks. A firm compression knit does not bunch under a stiff sole or slide down a heel, which is why our top pick leads. Breathabilitysecond — a mesh-construction sock is genuinely cooler on a hot day, and cycling is a sport where your feet sit still in a ventilated shoe. Then the specialist cases: a waterproof sock for riders who commute through winter, and a cushioned no-show for riders in regular shoes on flat pedals. We have not worn each of these through a season; here is exactly what we do instead.
Cuff height, and why it changed
Cycling sock height has drifted taller over the last decade — the no-show sock of the 2000s gave way to a mid-crew, and then to the tall seven-inch crew that is now standard in the sport. Some of that is fashion, but some is practical: a taller cuff keeps road spray and grit off your ankle, holds sun off a strip of skin sunscreen always misses, and does not disappear into the shoe. If you ride in normal shoes and want the socks to work off the bike too, a lower cut is the sensible call — there is no performance penalty.
The waterproof sock question
Waterproof socks are a genuinely useful niche product and an honest trade-off. They keep your feet dry in sustained rain for far less than a set of winter overshoes, and dry feet in cold weather is the difference between a tolerable commute and a miserable one. In exchange, they breathe noticeably less than a normal sock, so they are too warm for summer. Buy one pair for the wet months rather than as your everyday sock, and pair them with the rest of the cold-weather approach— gloves, lights and tire pressure matter at least as much as your feet.