The CCastelli Aero Nano Shoe Cover is going to be your "go-to" shoe cover on all but the coldest frostiest mornings. For a start its pretty aero and its light - aero enough for our race teams. So at least you've not got that feeling of riding in wellies. Castelli Aero Nanos are fully waterproof with taped seams they also seal against your upper ankle to keep water ingress from above to a minimum.
The Aero Nanos are also available in fluo yellow with reflective details making them pretty safe for the evening chain-gang too. Aero, waterproof, visible , minimal bulk - So almost too good to be true, is there a downside?
Well they don't have any insulation so on very cold days you may need something with more bulk to keep your toes warm - and these are a go faster product so don't have the abuse shedding potential of say the Diluvios, we certainly wouldn't recommend for a day to day commuter replacement.
But for fast rides in inclement weather these Castelli Aero Nanos simply can't be beaten.