Loues Garnea Wind Dry SL Shoe Cover
Worn in 30 degree weather, over Sidi road shoes. Feet were relatively comfortable. After about 2hrs my toes were getting cold, but not crazy numb like without booties! They are wind resistant, with a slight fleecy interior, but not thick material. (I am considering lining them with wool for more warmth.) Only drawback is that you must put them on before your shoes, then after shoes are on, pull the cover around your toe to fit onto your shoe and attach the Velcro tabs on the under foot. Fine once you get used to it. (Getting dressed to ride in the winter is a bit of a process) There is a Velcro closing gusset at top of ankle, to make room to pull on over thick winter socks, and silicone leg grips seal out rain.