Trunks pack by Jack Wills, Pack of two, Stretch jersey, Branded waistband, Form-fitting design, Machine wash, 92% Cotton, 8% Elastane. 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.