Made with three layers each picked for their own specific properties these socks strike the perfect balance of waterproofness and breathability. The outer layer blocks wind and is wear resistant for warmth and long life while the inner layer made from Merino is antibacterial and moisture wicking. Sandwiched in the middle is an Artex waterproof-breathable membrane that stops water from coming in while simultaneously allowing moisture to escape from inside. Showers Pass says these provide all the benefits of traditional booties without the added bulk so grab a pair or several for the next wet commute training ride or race day.