For the trip within a trip or the lightweight backpack for a trip outdoors or in the city. Ever come back with more than you left with? Put this tiny package in your bag and pull it out when you need it....and its waterproof! Waterproof material, 420D polyester Waterproof zippers with grip cord Large main compartment, zip pocket at the front and elastic side pockets Reflective print so you can be seen in the dark Easily compressed in the included bag with carabiner hook. Comes in 4 Colors