Defeet's Slipstreams are are a solid pair of oversocks (figuratively and literally) and you get to feel just like a seasoned pro of yesteryear by having to manually cut your cleat holes. Whether that's cool or not is a matter of taste.
DeFeet were one of the first to create specific oversocks. Frequently seen covering shoes in the pro peloton, Slipseams must be good – or is it just because money has changed hands?
DeFeet's Duragloves aren't cycling specific but their minimal bulk, low weight and fast drying properties more than compensate for traditional waterproofing and occasionally ill-conceived Ulnar blobs you do get on many cycle-specific specimens.
American company DeFeet is best known, probably, for its Aerator summer socks, but it does a pretty mean line in winter socks too - the Woolie Boolie is made from every discerning rider's favourite material: Merino.
The Aireator is a 100% synthetic cycling sock designed to give maximum airflow and maximum breathability and moisture wicking, making it best suited to warmer conditions. The fabric is thin, stretchy and extremely breathable, and the sock is constructed to be virtually seamless, giving a smooth contoured fit with no risk of rubbing. This particular sock from De Feet doesn't have any padding, keeping it sleek and low volume. Toe and heel areas are reinforced.