Spark Arc St Pro

The Arc ST Pro shares the same innovative design as the regular Arc, but steps up the quality of the materials to deliver one of the lightest splitboard bindings on the market. The super-light construction and high performance build ensure that, whether you're on those long tours, epic overnighters or even bombing trees, and steeps, this binding always delivers. The baseplate is CNC machined with maximum cutouts to shave weight yet maintain strength and performance while incorporating the industry-leading Tesla T1 binding anatomy. The Arc ST Pro binding features a stiff flex version of the Rip' N' Flip highbacks, constructed from carbon reinforced Nylon, it delivers a responsive and dynamic flex. The advanced Pillow Line ankle straps with flex windows for a nice surfy ride down. Every piece of this binding is made in-house by Spark with the exception of a few screws and the buckles!

In the Box: Bindings, Tesla touring brackets, T1 heel rests, mounting screws, and Spark pocket tool.

What else do I need? A set of Spark Pucks or Spark Canted Pucks.

• Features Tesla T1 System anatomy: built-in climbing wire, 2-position heel rest, newly optimized snap ramps, and new Fusion moulded side-lock touring brackets.

• Whammy Bar climbing wire: A single fatty climbing wire is built into the baseplate with a side arm lever for easy position changes on the steeps. You can switch easily from stowed, to low (12°), to high (18°) and back again while touring.

• Snap Ramps & Side-Lock Tesla Touring Brackets: T1 System bindings slide sideways into the offset touring bracket and are locked into place with our snap ramp. No pins, no cables, no fiddle factor. Integrated Ibex crampon mounting claws on touring brackets make for quick and easy installation and removal.

• Puck Compatibility: Slide them on and snap the ramp down. Snap the ramp up and slide them off. The most functional way to attach your binding to your board in ride mode. Period. Spark R&D bindings are designed to work with all puck compatible splitboard models. When used with Arc bindings conveniently access puck screws with the bindings in place for precise stance adjustment. Available in a flat and a 3° canted model. Note that pucks do not come with the bindings out of the box and must be purchased separately.

• T1 Heel Rest: The T1 Heel Rest catches the climbing wire in the 12° and 18° positions and is specifically designed to hold the T1 Step Locker in place.

• Pillow Line straps: Arc Pillow Line Straps are lightweight - 46% lighter than their fabric strap predecessors. They are ultradurable, comfortable, waterproof, one-piece molded construction, and made 100% in-house. Strap pillows are thin and flexible for a comfortable, conformed fit, while thicker ribs are held off the boot and provide stiffness for a uniquely responsive ride. Arc ankle straps are smaller around the boot than the Surge and feature a flex window for max agility while maintaining support. The toe straps come in one construction for both Arc and Surge models, and are designed to be used as a toe cap but also fit traditionally over the top.Ladders and adjusters produced in-house with unique thermoplastics that maintain flex over a wide temperature range.

• Buckles and Plastic: Ladders and adjusters are produced in-house with unique thermoplastics that maintain flex over a wide temperature range, performing well on spring tours as well as sub-zero suffer fests. All straps incorporate Burton's time-tested bomber