WYETH Free People Letterman Plaid Cap Grey Wool Blend OS WYETH by Todd Magill plaid baseball cap originally sold through Free People. Mixed plaid and herringbone patchwork in grey, brown, black, and cream with an adjustable back strap and antique brass-tone hardware. One size 30% wool, 70% polyester #wyeth #freepeople #plaidcap #preppy #academia