When it comes to wearable survival gear, I don't think there is a single item this effective, that you can also take on a plane. The Survival Paracord Bracelet Kit is geared toward people who don't want to carry around a bunch of extra gear, but also don't want to be that guy who has to ball up into fetal position when the weather changes on a hike - because he was too stubborn to bring matches for a fire. It's light, it looks cool, and it can do crucial things if you're ever in an emergency. Let's take a look at the specs.
Paracord When you open this bad boy up, you get 10 1/2 feet of paracord, stress tested at 350 pounds. Perfect if you bust a shoelace, need to mend a tent, hang food away from predators, fix a hammock, or restrain someone. Fire Starter The center prong on the attachment buckle has a magnesium fire rod. You can scrape some material off into your kindling, and then give it a spark. Scraper, Knife, and Whistle Use the scraper to strike the fire rod for sparks, or use the sharp edge as a knife. You can cut up the paracord into smaller pieces or small pieces of wood for kindling. On the opposite side you've got a whistle which is good to use as a bear whistle, or if you're lost somewhere. The whistle is surprisingly loud.