As expected the wool material regulates temp and is very comfortable in hot and cold weather. I ride motorcycles through winter so this aspect is very important in a base layer. Even so, the price is too high except on Sale, even then, they are very expensive for an undergarment.
See my review of the non shorty. THE BEST, FULL STOP, END OF DISCUSSION, DROP THE MIC. "only shorter"
Quick delivery. Great fit. I want more pairs.
If you travel, or have to get around these breathable beauties take the heat out of any situation. Love em :)