It's been decades since an 11 ounce cloth was considered summer weight, but here is a thoroughly modern industrialist, Luca di Montezemolo of Ferrari, wearing a suit of 11 ounce Solaro herringbone from Smith and Co. (the cloth gives itself away by the hint of red that comes from its colored underside). Re-purposed for the milder temperatures of spring and fall, Solaro is ideal for a place like San Francisco where we have cool sunny days scattered randomly throughout most of the year.
Like gabardine, another summer cloth of years gone by that wears warm and so finds itself relegated to the shoulder seasons, the classic Solaro color is tan. Unlike gabardine, that tan is usually executed in a hard wearing herringbone weave that has me dreaming of a three button suit with patch pockets and swelled edges. Mr. Peter Harvey's fall assignment, for certain.