Organize your gear by type. Silicone-coated ripstop nylon gives this set of ditty bags an ultra-light pack weight: each bag weighs less than an ounce and is translucent so you can see what's inside. A drawcord top with a cordlock closure keeps small items such as a Leatherman tool, sunblock, zip ties and other items from floating around your luggage. Each bag is a different color making it easy to sort your loose items into three distinctive categories like personal, little helpers and gadgetry. Helium Ditty Bags™ are purchased as a set of 3 - one each - small (8"x4"x3", 3 liter), medium (11"x5"x3.5", 4 liter), and large (13"x5"x4", 6 liter).