Outerknown
Mens Transitional Flannel Olive Branch Phase Plaid S
Feels like cashmere (but it's cotton, so you can wash it and beat the hell out of it).
You never need to worry about an undershirt either, you don't need it, it's so soft.
Single chest pocket.
Logo corozo buttons.
Signature OK logo embroidery at side seam gusset.
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