MACS Sack

The MACS Sack features a new hands-free, one-way purge valve that offers increased compressibility and is flexible and flush to prevent snagging. It also boasts an improved roll-down closure for a watertight seal, and a heavy-duty round bottom that lasts long, maximizes storage capacity, and stands upright to make packing easier than ever. This bag is made of tough, lightweight nylon. Use it for organizing and protecting gear in a pack, or on its own when you really need to watch every ounce.