Snowboard bindings, and the published number that decides it

How a binding is actually sized

This trips people up more than anything else in snowboarding retail. A binding size is a boot size range, published by the maker, and it has nothing to do with how tall you are or how long the board is.

That means the buying order is fixed: boots, then bindings, then board. The boots roundup is the first decision and it is the only one of the three you genuinely have to try on.

A binding that is too large lets the boot move inside the straps, which puts a delay between what your ankle does and what the edge does. A binding that is too small does not close properly over the boot at all. Neither failure is subtle.

What is worth comparing

• Published boot-size range. The single most important figure, and the one a surprising number of makers decline to print.
• Ratchet material. Aluminum or plastic. Ratchets are where cheap bindings fail, usually at the worst possible moment at the top of a run.
• Highback construction. The plastic plate behind your calf. It is what transmits heelside pressure, and a padded or flex-zoned one is more comfortable on a learning day full of sitting down.
• Mounting pattern. Boards use different insert patterns. A binding whose disc does not match your board is not a binding for your board.
• Warranty. Published, or not published. The gap here is large.

The three, compared

Read the first row before anything else. The System APX publishes a range wide enough - US 7 to 14 - that a household can share one pair of bindings between an adult and a teenager. The Soulside publishes no range at all, which means you cannot know whether it fits until it arrives.

The picks

System APX

The value pick and the one to buy. A published $109.95, aluminum ratchets, a fifteen percent fiberglass baseplate and highback, gel-padded straps, and a three-year published warranty against manufacturer defects.

The feature worth naming is the either-or toe cap: the toe strap can be positioned over the top of the toe or across the front of it. Over the top pulls the foot back into the heel cup, which is the setup that stops heel lift. Across the front is what most people are used to. Being able to choose is unusual at this price.

Its one real omission is mounting compatibility, which is not published. Check your board’s insert pattern - a four-bolt pattern is the common case and these are sold as part of boards that use it.

Rossignol Soulside

Marked as the skip above. It is a better-built binding on paper: a rigid center-frame highback with engineered flex zones for lateral movement, a one-piece 3D-molded TPU strap that wraps the boot both sideways and downwards rather than a padded ladder strap, and thermoformed EVA footbeds.

All of which is worth having on a second or third season, when you know your stance and want the board to respond faster. The stance page explains what changing a binding actually changes. But at $179.95 with no published boot range and no published warranty term, it is asking for more trust than it offers information.

Rossignol Rookie (S)

The one to buy for a child, and the reason is a single construction decision: the heelcup and highback are published as a single piece that adjusts to a different boot size without tools.

That is the whole argument for a child’s binding. The published range covers boot sizes 13 kids through US 4, which for most children is several winters. When their boots change, you move the binding in a parking lot rather than buying another one. The kids sizing page covers the board that goes under it.

The catch is the price. $144.95 is a lot for a component a child leaves behind at boot size 5, and it is more than the System APX that fits an adult. For a child who will ride four days this season, a seasonal lease is the better answer.

Flex, and why nobody publishes a number

Binding flex is usually described on a one-to-ten scale in shop copy and is almost never published by the maker as a measured figure. None of the three here states a number, and inventing one from marketing language would be inventing a number.

What you can rely on: a softer binding is more forgiving of sloppy input and more comfortable to sit in, which suits a first or second season. A stiffer binding transmits everything faster, including your mistakes. The fiberglass percentages that System publishes - fifteen percent in the baseplate and the highback - are a real construction fact, and more fiberglass means less flex, but the relationship is not a scale you can read off.

One alternative worth knowing about

Everything on this page is a strap-in binding. There is a whole other category - step-on systems, where a matched boot clips into the binding without straps - and it is a genuine trade rather than an upgrade, with a compatibility catch that is worth reading before you spend anything. That comparison has its own page.

And if you have not bought a board yet, the simplest route for a first setup is to not buy bindings separately at all. A matched package removes the compatibility question entirely, and the board roundup covers the packages worth looking at.