We've found so many patterns you can use to make a Paracord Bracelet such as the Cobra, King Cobra, Sidewinder, Caged Solomon, Herringbone Cobra, Viper, Rattler, Curling Milliped, Mamba, Fishtail, Solomon Lark's Head, Coin Knot, Cat Claw and Boa, to name a few.
The Cobra Bracelet pattern is the first pattern I learned; it's not too difficult and you can get the hang of it pretty quick. In fact, my mom brought a bunch of Paracord to my 3rd year of Girls Camp and we got to teach all the girls at camp how to make the Cobra Bracelet. Most of us used the 550 paracord. We even had the option of weaving in a bead or charm to make it more "girl" for those who thought it was too simple. Some of the girls already knew of it as the "survival bracelet", so we taught why it could be used for survival in some situations.
Things you can use your paracord bracelet for, you would have to unwind your bracelet but at least it comes in handy when you needed it. For example, you could use it to tie up gear, make a shelter, start a fire, make a splint for a broken limb, string a strand between two trees for a clothes line, hang food in a tree, or use as a tourniquet. The 7-strand inner core can be removed and used for fishing line, sutures, stitching fabric, snares or tripwires.
Paracord is durable and each size of paracord has a certain weight it can hold. From the thinnest paracord to thickest in size you have Nano: .75mm that can hold 36lbs, Micro: 1.18mm can hold 80-90, Type 1: can hold 95 lbs, 275: 2.38mm can hold 275lbs, 325: 3mm can hold 325lbs, 425: 3mm can hold 425lbs, 550: can hold 550lbs, 650: 5mm can hold 300lbs, 750: 4.75mm can hold 750lbs and last but not least Battle-Cord: 5.6mm can hold 2,650lbs. These are break or tensile strengths. The working load is about 10 to 15% of the break strength.
There are so many ways you can use a Paracord bracelet. Click this link on how to make a paracord bracelet.
Note. Paracord is not a life line.