Bum bag by Helly Hansen, New bag, new outlook, Adjustable body strap, Secure clasp fastening, Branded design, Zip closure, External pocket. A true heritage brand, Helly Hansen was created back in 1877. Founded by Norwegian Helly Juell Hansen and his wife Maren Margarethe, they started out making clothing designed to withstand harsh climates. Grown from humble beginnings to the brand you know and love today, its selection of jackets, tops and accessories helps shield you from the elements.