Golf sweater vest in simple white with an embroidered small logo of the US Open and Olympic Club on front. Does not indicate fabric but I would guess a soft cotton.
I attended the final day of the US Open at the Olympic Club in SF and purchased this as a souvenir. I never wore it and its been stored in a bin in my closet for many years. Hard to believe that was 37 years ago! Nice piece of old US Open memorabilia.