Blackyak Emergency Jacket
Made from super lightweight Dyneema, the Blackyak Emergency Jacket is potentially lifesaving outerwear that comes in an extremely small package. The entire thing folds up to roughly the size of a baseball, and weighs just 71 grams — yet it's still able to provide protection against wind and rain. It has no unnecessary bulk but does have built-in elastic tape to keep it as close to your body as possible, preserving precious warmth until the storm passes or help arrives.