A bit of business--Camelback(tm) is a trade name of the leader in hydration packs. We're using the name genertically because most people refer to hydration packs as Camelbaks.
We'll get to the Camelback part in a little bit, but first a little recap of current PFD requirements for SUP. If the U.S. Coast Guard has things their way, most SUP paddlers in the United States who paddle outside of the surf zone will be wearing a PFD and toting a whistle soon. I can't say that's a completely bad idea, though the current regulation is nonsensical. You can comply fully with the regulations by tying an inflatable PFD with a whistle attached to your board. No requirement for a leash. Then if you fall in and there is any wind at all, your board will quickly depart, leaving you without a floatation device of any kind. If the regulation were to be written in a sensible way it would require that you WEAR a PFD with a whistle attached unless you had a leash. If you had a leash, only a whistle would be required.
The problem with regulations written by people with limited understanding of a sport is that they rarely make good sense, and so people tend to ignore them even if they partly rational. The regulations have to be enforced, rather than just being made clear. And the officers enforcing the regulation know that it's poorly considered, so they enforce it sporadically if at all. I have been stopped by harbor patrol, coast guard and sheriffs numerous times, and except for one goofy occasion in Elkheart Lake, Wisconsin, I have never been cited, or even made to comply in any way. Just warned that the regulation exists--generally with a lot of sympathy from the officer regarding the silly regulation.
It doesn't have to be that way. If you're in the open ocean, or even a big lake or a wide river, and your board gets away from you, the situation can go bad fast. Even if you're a fine swimmer the combination of cold water, exhaustion, swells or surf, and panic can turn a minor incident into a tragedy. Carrying a PFD is a good idea, especially if you don't want to deal with a leash. We'll be working on this regulation in two ways. First, trying to get the Commandant of the Coast Guard to reword the regulation to allow the SUP board to substitute as the PFD if the paddler wears and appropriate leash, with the option available to carry or wear a PFD on your person if you choose to paddle without a leash. We're also working on a design for an integrated life vest/hydration pack that would make it easier to comply.
In working on this design we came across something that seems pretty important. A standard hydration pack makes a fine PFD just as it is. No, it's not a LEGAL PFD, but it can save your life. Even very small fanny pack Camelbacks provide a remarkable amount of flotation. You can probably guess how you use the pack, but here's the details.
So, you're in the water with a busted leash and your board is a rapidly diminishing dot on the horizon. You're two miles out on the north shore. You're going to be swimming at least four hours before your feet touch sand. You tread water and take off your camelback. Snap the chest strap together and loosen it a little so you can wiggle into the shoulder straps with the bag is on your chest. If there is a waist belt you can pass the belt around your waist and clip it in the back. You'll notice that the pack doesn't interfere with swimming. Now open the valve, drink as much water as you can (don't just dump it, you'll need hydration), and then blow into the hose until the bladder is full and tight. Close the valve. You'll be surprised at how high this relatively small amount of air will hold your head out of the water. You can swim easily, and even just cross your arms across your chest and flutter kick.
A one quart bag full of air is only displacing two pounds of water, but your body is near neutral buoyancy in the water. You don't need a tremendous amount of lifting capacity to aid flotation. A swim board only displaces about a quart of water too, and yet it's enough to enable non-swimmers to putt around in a pool with confidence.
With the smaller fanny packs the key to good flotation is getting it high on your chest. In that position it will keep your face out of the water and enable unencumbered swimming. It's most effective to take the time to adjust the hydration pack for best flotation and unencumbered swimming before you start slogging towards shore. Stopping numerous times to adjust the pack as you go is tiring.
As you go you can continue to drink water as you need it. The pack doesn't need to be empty to be effective.
Remember that this is not currently a substitute for a real PFD, it's an emergency procedure that you may find very helpful. I carry a real inflatable PFD in my hydration pack when I do downwinders. I use a compact vest I found on sale at West Marine for 40 bucks. There are also Swim Belts that are USCGS approved that are even more compact and can be worn comfortably.
The disparity in safety gear I see in the water is amazing. Some highly qualified and experienced SUP distance and downwind racers wear a pair of board shorts and nothing else. Some even don't like to use a leash. Other highly experienced racers wear a larger-sized hydration pack with a PFD, signaling device, food pack and cell phone or marine radio that are either waterproof or are stored in a dry pack. I fall somewhere in between those extremes:
- I wear a sturdy leash. I used to think a wimpy little coiled boogie board leash was adequate--after all, we're not going into breaking waves. But one experience with the kind of pull you can get from a racing board caught in a swell showed me the folly of that notion. And a little underwater tour over the Upper Kanaha reef demonstrated that you can't assume you won't be in serious surf.
- I use either a fanny style hydration pack or a small backpack style.
- I stuff a PFD into my hydration pack
- I carry my iPhone in a compact drybag that lets me use the phone through the bag.
- I have a whistle attached to each of the hydration packs I own
I'm a good swimmer, and I have a lot of endurance. I have swum in from outer reefs when I lost my surfboard or windsurfing equipment. I've swum in from a windurfing incident at least two miles out from the Oregon coast--four hours of swimming in 50 degree water wearing a light windsuit. Despite my confidence, I know that this is the ocean, and things go right until they don't. Then you need every advantage you can have to survive. Be careful out there.