The classic handle. The briefcase handle will give your satchel the perfect classic look and feel.
The Briefcase handle is added during crafting and gives your satchel a more executive look. Keep in mind that when you choose the briefcase handle option the internal height of the satchel will reduce by a couple of centimetres. As a result, though a 14-inch Macbook Pro will fit in a 14-inch satchel it will not fit in a 14-inch briefcase satchel.
This cannot be retrofitted.