Cap by Jack Wills, Cotton twill, Domed crown, Eyelet vents, Curved peak, Jack Wills logo, Adjustable strap, Do not wash, 100% Cotton. Jack Wills was launched in 1999 in Salcombe, Devon, designing British heritage-inspired goods for the university crowd. Influenced by the best of British, whether that's sporting history or country pursuits, Jack Wills' signature prep aesthetic makes up a high-quality collection of hoodies, sweat pants and denim.