Line Marker Pigtail: How to Carry Cookies and Arrows

Cookies in a pocket float. Arrows in a pocket tangle.

Now reach for one with a reel in your other hand, in poor visibility, with your teammate waiting. Which pocket? Which marker? Which way up?

It's a small piece of kit. It solves a real problem. And it costs next to nothing.

I don't teach cave courses here. But if cave or overhead training is on your horizon, this is one of the simplest things to get right before you start.

What are line markers for?

Line markers are small plastic markers you put on a guideline.

Arrows are directional. They point toward the exit. Put one on the line and you've left a message: out is this way.

Cookies are non-directional. They mark a place on the line without pointing anywhere. Divers often use them as personal markers.

Both come off your harness one at a time, usually with one hand, while your other hand is busy. That's the problem the pigtail solves.

What is a pigtail?

A short length of bungee or silicone surgical tubing, attached to your harness, with your markers threaded on it and a knot at the free end.

The material is slightly thicker than the hole in your markers, so they stay put. Stretch it and it gets thinner. The marker slides off. Let go and the rest stay where they are.

How do you build one?

TDI's guidance on marker holders is practical and specific (TDI):

1. Choose the material. Marine-grade bungee or thick-walled silicone surgical tubing. Both outlast thin latex.
2. Size it to your markers. Slightly larger than the hole and slot in the marker. Snug, not tight.
3. Cut it to length. About 4 to 6 inches if it's tied to a chest D-ring. About 6 to 9 inches on a bolt snap.
4. Attach it. Tie it, or fold it and secure it with a zip tie. On a chest D-ring, use the inner side, where it's easy to reach.
5. Seal the ends. If you use bungee, singe the cut ends so they don't fray.
6. Thread your markers. Arrows and cookies, all facing the same way.
7. Stop the free end. An overhand knot, or fold it back and zip tie it. The stop also gives you something to pull against.

How do you use it?

Pinch the stop. Stretch the pigtail. Slide one marker off.

That's it. But do it a hundred times before you need it once.

Practice in your full kit, with your gloves on. Practice with your eyes closed. Practice with something in your other hand. If you can only do it while looking at it, you can't do it yet.

Where shouldn't it go?

Anywhere it becomes an entanglement hazard, or gets in the way of a valve, a regulator or a light. Keep it short. Keep it on the inside. Keep it clear of the hoses that have to deploy.

Isn't it just a piece of bungee?

Here's the reality check.

The comfortable belief: it's a piece of bungee. It doesn't matter how I set it up.

The truth: when you need a marker, you need it now, by feel, with one hand. That's a skill. The pigtail just makes it possible.

Build the foundation first

Overhead diving rewards divers who already have the basics locked in: buoyancy, trim, propulsion and team awareness that don't need conscious thought. Line markers are the easy part.

If that's where you're headed, start where every technical path starts. Essentials of Tech builds the control everything else depends on. And for the rest of your harness, read DIR Gear Configuration.

So, where are your markers right now? Could you find one with your eyes closed?