I am in NC, so not as cold as some others, but morning commute temps. can still be in the teens and low 20's. Use a pair of (oversized) Performance gloves last season with liners when needed. Already the seam is splitting, so looking for new warm and durable pair. One nice feature of the Specialized mittens is that they come with liner and can be worn in 3 combinations. However, as index finger is seperated (as opposed to other split mittens) it will not have the benefit of warmth from another finger. Might not be that big of deal though.