Navy, Red, or Natural.
.With a spandex arch support, reinforced heels and toes, and flat side panels. Unlike common cashmere fibers that have a 19-micron diameter, these bison fibers have a 15-micron diameter, making them a finer and softer fleece. 64% Merino wool/17% bison down/16% nylon/2% polyester/1% spandex.