For riding days where it's still on the cool side, you might consider a pair of thermal tights or knickers. I recently tried out the thermal bib knickers made by Boure Bicycle Clothing out of Durango Colorado and found them to be very comfortable both in fit and in a wide range of temperatures.

• Read the full review here of Boure Thermal Tights and Knickers


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Image: Boure Cyclingwear