Jumper by Jack Wills, Wool-mix knitted fabric, Roll neckline, Cropped length, Ribbed cuffs and hem, Slim fit - cut close to the body, Hand wash, 44% Cotton, 21% Viscose, 18% Alpaca wool, 17% Polyamide, Our model wears a UK 8/EU 36/US 4. Jack Wills launched in 1999 in Salcombe, Devon, designing British heritage-inspired goods for the university crowd. Drawing a distinctive connection between the old and new, Jack Wills take pride in their finest quality materials and fabulously British design across their collections of hoodies, denim and beauty.