These are great tights for cold temps. The chamois is very comfortable as is the overall fit. The leg length works well for me (size Small isn't too long on my 5'2 frame). They are not thick like Castelli's Meno wind bib tights (which are super awesome for really cold rides!) but still provide nice warmth and comfort on cold rides. One great feature with no bibs is not having to get half undressed to make a nature call, which is particularly nice in cold weather!
Have used them in the fall weather of Montana. and just returned form Cycling in Ireland great in the rain, mist, wind that is Irelands weather.
Very comfortable and definitely kept me warm and dry in the all day rain and mist.