I need to get a new pair of long john bottoms to go under my Specialized Therminal tights. I ride a recumbent and the tights do a great job at blocking the wind from the front, but under the backs of my legs get really cold because the wind and cold air has easy access to the space between my legs and the seat. The therminal tights do not have any wind panels in the back, just the front. They are more designed for diamond frame bike use. No one makes a wind blocking, moisture wicking, thermal, insulated bike tight for recumbent riders.
What I do to keep the backs of my legs warm is wear long john bottoms underneath along with a pair of my Under Armour compression shorts as the base layer. But I need a new pair of long john bottoms. The ones I have are for temps 30 degrees F or above with little to no wind. While the temps may not be below 30 yet when the wind is blowing or the wind generated by my riding makes it colder.
I am still looking at my options but I have found a pair that is 50% cotton and 50% polyester. The cotton layer is the outside layer and the poly is the inside which contacts the skin. We all know that cotton when it gets wet it retains the moisture, the last thing a cyclist in the cold weather wants to have happen.
I would like your opinion on if what you think about or would like to know what kind of experience you have had with wearing a 50/50 garment like this with another moisture wicking garment, like the Specioalized Therminal tights or the Pearl Izumi Amfib's over the top. Did the cotton retain the moisture between the 2 garments you you felt or got colder? Do yuou think this would happen or do you think the outside tight garment would pull the moisture off of the cotton layer so it can evaporate off or is not trapped making me cold?
I am most interested in this style of long john because it is still thin enough to fit well under the therminal tights. I can go heavier but it may not fit too well under the tights because it is thicker. Cotton, while not a good moisture wicker is a great insulator. With synthetic materials to get the insulation you need to go with a thicker garment or figure out a way to completely block the wind and that only works for so long and so far.