The Toe Thermal II is a lifesaver for folks with constantly cold toes and those who want to dig into winter cycling. They're warm in cool weather, and they're constructed from 3mm anti-slip neoprene for both warmth and durability. For easy use, these covers also feature a cleat opening under the sole. Through the cold and the wind, we're wearing the Toe Thermal II to stay toasty in our toes.