How to Choose a Saddle Water Bottle Holder: Horn, Back Cinch, or Rear Billet?

The steadiest place to carry a water bottle on a Western saddle is on the rear billet, behind your leg and against the skirt, not on the horn. I know because I tried the other two first. A horn holder swings every stride and sits right where your rope hand works. A clip-on that hangs off a dee or a saddle string flops the same way, and on a horse that is not used to it, that flopping will spook him. A holder that slides onto the rear billet is pinned between the rigging and the back cinch, so it rides with the saddle instead of against it, and the horse never knows it is there. Pick the mount first, then the material: nylon is cheap and light, leather costs more and lasts decades. Everything else, including how to tell whether your saddle has a rear billet at all, is below.

In this article

• What are the ways to mount a water bottle holder on a saddle?
• Horn vs back cinch vs rear billet: side by side
• Why does a horn-mounted bottle bounce so much?
• How does a rear billet water bottle holder attach?
• Leather or nylon: which saddle water bottle holder lasts?
• What size bottle fits a saddle water bottle holder?
• Which should you choose?
• One on each side: a story from the mountains
• FAQ

What are the ways to mount a water bottle holder on a saddle?

There are three places a bottle can ride on a Western saddle, and each one behaves differently once the horse moves. I have ridden with all three.

• Horn mount. A holder or drink pouch that loops over the horn and hangs down the swell. It is the quickest to put on and the easiest to reach, and it is also the worst-behaved: the bottle hangs from a single point, so it pendulums at a trot and lope, and it sits exactly where a roper's hand and coils need to be.
• Clip-on (dee ring or saddle string). A nylon holster with a snap or plastic buckle that clips to a rear dee, a front dee, or ties to a saddle string. Cheap and universal, and it hangs free, so it swings and bangs the skirt or your leg, and the plastic hardware is the first thing to fail.
• Back cinch or rear billet mount. A leather holder with a strap loop that the rear billet passes through, so the holder is sandwiched between the rear rigging dee and the back cinch buckle. It sits flat against the rear skirt behind your leg and cannot swing because it is pinned at the top and held against the horse by the cinch. This is the mount I build, because it is the only one that stays still.

Pommel bags and horn bags with a bottle pocket are a fourth option if you also want to carry lunch and a phone, but they put the weight over the withers and in front of your hands, which is fine for a walk-and-trot trail and a nuisance for anything faster.

Horn vs back cinch vs rear billet: side by side

	Horn mount	Clip-on (dee / string)	Rear billet / back cinch
Where it rides	Off the horn, down the swell	Wherever the dee is; hangs free	Against the rear skirt, behind your leg
Movement at a lope	Swings every stride	Swings and slaps	Pinned; moves with the saddle
In the way of	Rope hand, horn wrap, reins	Your leg, saddle bags	Nothing
Reach from the saddle	Easiest	Depends on the dee	Reach back; easy at a walk
Typical hardware	Loop or strap	Plastic buckle, snap, plastic dee	Stainless buckle, leather strap
Typical price	$10 and up	$9 to $30	$45 to $145 (leather)
Best for	Short walks, quick access	Budget, English saddles	Trail, ranch work, roping, hauling

Why does a horn-mounted bottle bounce so much?

Physics, not bad luck. A horn holder hangs from one point at the top, so a full 32 oz bottle is a three-pound pendulum with nothing stopping it from swinging. At a walk it sways. At a trot it slaps the swell on every stride, and at a lope it can flip up and hit your hand. Riders end up cinching it down with a saddle string, which helps until the string works loose.

Here is why I started building these in the first place. Everything in front of a rider is already crowded: your hands, your reins, the horn, and if you rope, your coils. I got tired of a water bottle being one more thing in that space, getting grabbed by accident or catching a leg. So I tried a horn holder, and then a clip-on that tied to the saddle strings, and I did not like either one. Both flopped. On a broke horse that is an annoyance. On a horse that is not used to something slapping his side, it is a wreck waiting to happen. That is when I moved the bottle to the rear billet, because anything attached to the rear billet can be held down tight with no movement, lays flat against the horse, and the horse stays comfortable. That was the whole idea, and it is still the whole idea.

A clip-on holster has the same problem for the same reason: one attachment point, free hanging, and the lighter the holster the more the bottle drives it around. Most of the nylon holsters in the $9 to $30 range close with a plastic quick-release buckle and hang from a plastic dee. That hardware gets brittle in the sun and cracks in the cold, and when it lets go it is usually at a lope with a full bottle.

The rear billet mount fixes both. The holder is held at the top by the billet passing through it and pressed against the horse's side by the back cinch, so it has two points of contact and no room to swing. If you have ever wondered why your back cinch needs to be snug, this is one more reason: a snug back cinch is what keeps the holder still.

How does a rear billet water bottle holder attach?

The rear billet is the short strap that hangs from the rear rigging dee on each side of a Western saddle and buckles to the back cinch. (If you want every strap on the saddle named, our parts of a western saddle guide has a labeled diagram.) Mounting the holder takes about a minute:

1. Unbuckle the back cinch on the side you want the bottle. Most right-handed riders put it on the left, the side you mount from.
2. Slide the holder's strap loop up the rear billet until it sits against the rear rigging dee. The holder should hang flat against the rear skirt.
3. Buckle the back cinch again, snug. The cinch now holds the bottom of the holder against the horse.
4. Drop the bottle in and close the top strap with the cart buckle. A 20 oz bottle sits low in the holder; a 32 oz tumbler stands about an inch proud of the rim.

Watch it done on a real saddle:

No rear billet? Some barrel saddles and older saddles are rigged single, with no back cinch at all, and some have billets so dry-rotted they will not hold a bottle safely. Either way the fix is the same: a set of rear billets. Ours are 30" double-ply harness leather, and they are the same leather as the holder, so the two look like they came off the saddle together.

Leather or nylon: which saddle water bottle holder lasts?

Nylon wins on price and weight. A 600-denier nylon holster costs $9 to $30, weighs a few ounces, dries fast, and does not care if you leave it on the trailer floor. For an English saddle, or a bottle you only carry twice a summer, it is the sensible buy.

Leather wins on everything that happens after the first season. A full-grain leather holder is stiff enough to hold its shape with the bottle out, so it does not collapse and you can drop the bottle back in one-handed. It does not fray at the stitch line, it does not fade, and the hardware on a good one is stainless rather than plastic. Mine are cut from the same dark brown full-grain leather as my rear billets, stitched with reinforced seams, and closed with a 5/8" stainless steel cart buckle. That is why I can put a lifetime warranty on it and the nylon makers put a season on theirs.

The honest trade-off: leather costs three to five times as much and needs a wipe-down and a coat of conditioner once a year. If you already oil your tack, the holder just joins the rotation. Here is how to clean and condition leather the way we do it in the shop.

What size bottle fits a saddle water bottle holder?

Measure the holder's opening, not the bottle's capacity. Most Western saddle holders are built around a 3.5" to 4" opening, which covers the standard 20 to 32 oz insulated bottles and tumblers (a Yeti Rambler bottle, a Hydro Flask 24 or 32 oz, most handle-free insulated bottles). Mine is 9" tall by 4" across and fits most bottles in that range; tumblers with a fixed side handle, like the Stanley Quencher, are the ones to check first, because the handle is what will not clear the rim, and a 64 oz growler is out of the question.

Height matters less than you would think. A tall bottle stands proud of the rim and the top strap catches it; a short 20 oz bottle sits low and rides fine. What you want to avoid is an opening so much wider than the bottle that it rattles, which is the failing of the one-size nylon pouches that promise to fit everything.

Which should you choose?

The thing I hear most from people who switched is that they forgot the bottle was there until they wanted a drink, and that the horse never cared. The second thing I hear is about the accent band on top. I keep twelve styles going, from plain leather to buckstitch, suede, basket weave and Aztec, because most riders want the holder to match something already on their saddle or tack, and I would rather build the option than make you settle.

• You rope, ranch, or ride long trail days: rear billet mount, leather. It is the only one that stays put at speed and stays out of your hands.
• You ride an English saddle or a single-rigged saddle with no back cinch: a clip-on to the rear dee, or add rear billets and go with the mount above.
• You want a bottle you can reach without looking, on a horse that only walks: a horn holder is fine. Tie it down with a saddle string.
• You are buying a gift for a rider: the rear billet holder in their tack color. It fits every Western saddle with a back cinch and needs no sizing, which is why it shows up in our gifts for horse lovers list.

One on each side: a story from the mountains

I have a customer, a husband and wife, who haul out west every summer and ride the mountains in Wyoming, Colorado and Montana. They used to carry one bottle on the horn. One day it got knocked off going through a stretch of brush and timber, and neither of them noticed until they reached for it. That was six or seven hours into the ride, and they were out of water with a long way back to the truck.

They run two of my holders now, one on each rear billet, and they have not lost a bottle since. Two 32 oz bottles behind your legs is a gallon of water riding where it cannot be brushed off, and you never have to think about it. If you ride long country, that is the setup I would tell you to copy.

Frequently asked questions

What is the best water bottle holder for behind the saddle?

A leather holder that mounts on the rear billet. It sits flat against the rear skirt behind your leg, is pinned at the top by the billet and held against the horse by the back cinch, so it does not swing at a trot or lope. Horn holders and clip-on holsters hang from one point and pendulum with every stride.

What is a good water bottle holder for horse riding?

For trail riding, ranch work, or roping, a rear billet or back cinch mounted leather holder with a stainless buckle. For an English saddle or a once-a-summer ride, a nylon clip-on holster to the rear dee is the cheaper answer. Avoid horn-mounted holders for anything faster than a walk.

Does a saddle water bottle holder fit any saddle?

A rear billet holder fits any Western saddle that has a rear billet and back cinch, which is most of them. Single-rigged saddles with no back cinch need a set of rear billets added first, or a clip-on holster to a dee ring instead. Clip-on nylon holsters fit Western and English saddles alike.

Which side of the saddle should the water bottle go on?

Either side works. Most riders put it on the left, the side they mount from, so it is easy to fill and grab from the ground. Ropers who dally right-handed sometimes prefer the right side to keep the left clear of the rope. Balance is not a concern; a full 32 oz bottle weighs about three pounds.

Can I use a Yeti or Stanley in a saddle water bottle holder?

Usually, if the holder opening is around 4" and the bottle has no fixed side handle. Yeti Rambler bottles and Hydro Flasks in the 20 to 32 oz range fit a 4" holder. Handled tumblers like the Stanley Quencher are the ones to measure first: the body may fit, but the handle has to clear the rim.

How do I keep a water bottle from bouncing on my saddle?

Mount it on the rear billet instead of the horn, snug the back cinch so the cinch holds the holder against the horse, and match the holder opening to the bottle so it cannot rattle. If you must use a horn holder, tie its bottom to a saddle string.