This simple yet highly practical bit of kit is made from tough PU coated Taffeta nylon with a 10,000mm hydrostatic head (it’s waterproof!) and fully taped seams. Featuring a light coloured interior to make it easier to see what's inside and a grab handle on the base so that you can grab it from your pack or carry a handful of them. Always ensure that you fold the top over at least three times to make it watertight. Be warned, these bags are addictive, they are so useful that you'll wonder how you lived without them.