allviking wrote a review of Outdoor Research Hydrolite Pack Sack on May 28, 2008
I own sizes 2 through 4 and I will be purchasing sizes 1 and 5 shortly. They are essential gear. Don't go into the backcountry without these. We all know the importance of waterproofing, and these bad-boys are rockstar quality. Spend the couple extra bucks and ditch the Ziploc bags, you will be happy you did when your extra pair of hiking socks and underwear are bone dry. Hot Dog!