Yak wool is one of the lesser known base layer fabrics. It’s warmer, lighter, and more breathable than merino wool, but still provides odor resistance, durability and softness. Kora has brought to market the Shola 230 Yak Wool Crew, and this is my review. Starting with the basics, the Shola 230 Crew is indeed produced … More Kora Yak Wool Base Layers