Eagle Creek Pack-It® II Half Tube Cube - Blue - $9.99
Luggage > Travel Accessories
Perfectly sized to fill up those empty spaces in your luggage, this bag is great for socks, underwear, t-shirts, ties and belts. There's even a spill-proof mesh liner that keeps damp items like toothbrushes and shave kits separate. Measures 10" W x 4" H x 2" D.