I ordered a base layer set, during the Black Friday sale at a great discount, in the size indicated for me in the size chart. However, the fit was a bit too loose. I contacted Merino-Tech via email and asked to exchange, told them the size I wanted, and they agreed. I mailed the original set back to them with the free gift pair of socks they requested I return with the base layer set. Several days later I received an email saying they no longer have my size in the set I asked to exchange for and they would be refunding me. I went onto their website and they have the exact same product in separates. I realize they can make more on separates but when they said they could honor my exchange initially, it seems they might make an exception. However, they refused to send the separates even though they are the exact same product in the exact size and color I asked, and they agreed, to send. The difference is they are in 1 bag or 2 bags. Since I disagree with this decision, I asked to return my other items, still unworn, including a three pack of socks. I only got the items because of the sale. The socks arent even the color I ordered. They never sent the original color and I never received tracking for the socks like I did the rest of the order. So, I contacted Merino-Tech to ask of I would be getting the 3 pack of socks because I had nothing showing they were ever sent. They told me they were lost in the mail and that, unfortunately, they were no longer available. They asked if I wanted a different color and I told them what I would take as a replacement. I received the replacement pack. Now, they will not allow me to return the UNUSED socks because it is unsanitary and yet they requested I send back the free gift pair that I got with the base layer set or else they would not exchange my base layer set. The free pair is no more sanitary than the pair I paid for so I think we all know this has nothing to do with sanitation or customer service. It's the same reason they won't send me the EXACT SAME items in separates. I waited and bought this on Black Friday because that's what I could afford. I missed out on every other company's sales for Merino-Tech to pull this and leave me with nothing. I wouldn't purchase from them ever again because God forbid something doesn't fit.