The fourth company we found is called Woolly Clothing Company. This company is based out of Seattle, Washington and is very small but it keeps growing, which is a great sign for merino wool clothing lovers. Right now I have only purchased the men’s t-shirts and underwear for my husband and son. They both love the thickness and quality and they have held up very well over time (I wash them on the wool setting in our washer and hang dry them). I look forward to trying their women’s t-shirts next!