You know the infomercial for vacuum sealed space saving bags? Skip the vacuum. The Pack Bag is a simple, durable and highly functional way to pack down multiple pants, shirts, socks and drawers into one small space. The inner mesh sleeve gives easy access to smaller items and keeps them from disappearing at the bottom of your luggage. Designed to lay flat, zip wide open and stack neatly inside the Topo Travel Bag, the Pack Bag makes traveling a little bit easier.