I received it as a sweater and can use it as is. But it's thick and quite thin. So it works better as a shirt. That's how I wore it. Perhaps this is what the Best Buy site means when recommending this as a "base layer". Since it's 70% wool, I was afraid it would get scratchy. It is not. He's nice and soft. It's very comfortable and stylish. Reminds me of a bicycle top. I like wearing it. Since the material is thin I wonder how long it will last; probably for a long time because it's also 30% polyester.
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