Jacob is our lightweight Sea Island cotton knit, made from the rarest and most l...Jacob is our lightweight Sea Island cotton knit, made from the rarest and most luxurious cotton in the world; Sea Island cotton. Our men's polo shirts feature a super-fine gauge knit, a ribbed collar and mother of pearl buttons - paired perfectly with some linen shorts or trousers, they're incredibly soft and make for a stylish layering choice.
