Black, white and red 100% cotton t-shirts. The dark gray is 60/40 cotton/polyester and the light gray is 96% cotton, 4% synthetic. It's a bit strange that they aren't the same material, but they all look the same. I usually wear a medium sized t-shirt, but this small one was listed as a 38 chest. This is my size; so i tried it Tight fitting but ok. In fact, they're pretty comfortable and stylish. There was no noticeable shrinkage, which is unusual for an all-cotton t-shirt. I wear it as a t-shirt from winter on. I love the colorful tee that peeks out from under the shirt. In warm weather, I wear them as a shirt when I'm relaxing at home. Therefore, they are versatile and convenient.
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