Going off a little here.
The best warm wicking materials are wool and silk. Period.
Regardless of the expense, please buy a wool cooler, light or heavy – because silk would be bonkers – and care for it as if it will last your lifetime, and several afterward, because it will.
I’m a hundredth-generation knitter and I just read “Your Sweaters are Garbage,” by Amanda Mull, and listened to “Read This Before You Buy That Sweater,” an interview with Amanda Mull.
Those of us with a fraction of a penny of disposable income, especially if we consider ourselves agriculture-adjacent, have an obligation to support farmers who produce actual fiber that does what it says and stanch the flow of plastic into our water tables and dumpsters.
Please.