Made from the finest 100% Helle Rambouillet merino, this soft, lightweight and airy rib construction has plenty of stretch. Wool hats famously perform by allowing your head to breath (unlike synthetics). Prevents overheating by quickly transporting the heat to the outside and quickly evaporating. Can be worn cuffed or unfolded.
Quality of the wool is outstanding and it is the thickest cap I own. My hat size is 7 7/8 and it is a bit snug but not uncomfortably so. I didn't have it for the coldest part of this winter but I have no doubt it will perform next year. Great hat.