The cobra weave is the entry-level paracord bracelet, and once you've made one you know the knot behind most of macrame. Two cords, one plastic buckle, and a square knot repeated until you reach the buckle on the other side.
Megan from Beadaholique uses two colors of 4mm paracord (550 cord), a 0.6 inch plastic buckle, a basic disposable lighter, and either flush cutters or strong scissors. The disposable lighter matters - a torch lighter burns straight through paracord.
Plan on about an hour for your first one. The hardest part is remembering to alternate the knot direction - left-then-right, then right-then-left. If you forget, the bracelet twists into a spiral instead of laying flat.
How much paracord you need
The common rule is about one foot of cord per inch of finished bracelet. A cobra weave eats cord fast because each knot wraps the core twice. For a two-color build, split that between the two colors and cut each a little long. Spare cord costs pennies. Running out two knots from the end means starting over.
Measuring your wrist
Wrap a strip of paper or a soft tape around your wrist bone and mark where it meets. Add about an inch for comfort. The buckle takes up a bit of length too, so knot until the bracelet with the buckle closed matches that number. Fit it on your wrist every few inches as you go.
550 vs micro cord
550 cord is the standard 4mm paracord, rated to hold 550 pounds, with seven inner strands. It makes a chunky bracelet and is the easiest to learn on. Micro cord is about 1 to 1.2mm, makes a slim bracelet that looks like jewelry, and takes far longer because you tie many more knots per inch. Learn on 550.
Sealing the ends safely
Hold the flame to the cut tip until it turns dark and glossy, then press it flat with the metal side of the lighter. Never use your finger. Molten nylon sticks to skin and keeps burning. Work over a non-flammable surface, keep the flame small, and let the end cool for a full minute before you touch it.
Cobra vs king cobra vs fishtail
| Weave | Look | Cord |
|---|
| Cobra | Flat, even, the classic | About 1 ft per inch |
| King cobra | A second cobra layer on top, thick and heavy | Roughly double |
| Fishtail | Thinner, woven over-and-under pattern | A little less than cobra |
The survival angle
Many people wear a paracord bracelet because it unravels into several feet of usable cord. Cut the sealed ends, pull the knots apart, and you have a length of strong line for a shelter tie-down or a shoelace. The inner strands pull out for fishing line or thread.
Common mistakes
- Uneven knots. Snug every knot with the same pull or the edges go lumpy.
- Losing the alternation. If one edge shows the same color twice, undo back to that knot and redo it.
- Too tight. Paracord does not stretch. Test the fit before the final knot.
More knots to try
The cobra knot is the same move as a macrame square knot, and the buckle attaches with a lark's head knot. For a softer bracelet with no buckle, try a friendship bracelet finished with a sliding bracelet knot.