This billingham computer slip is tailored to hold a g4 12 powerbook or other 12rdquo laptop and to help protect it against dust spray and scuffs the slip can be used on its own or slipped into the front pocket of a billingham 335 445 or 555 the slip colour matches the interior of billingham bags and features closed cell foam padding as well as a soft nylon lining and two velcro closures hold a g4 12 powerbook or 15rdquo laptop can be used on its own can be put in the fro