The Arc is Spark's lightweight, pow-chasing, touring machine, starring our new Tesla T1 System. (This is the T1 version of our discontinued Magneto binding.) Maximum cutouts in baseplate shave weight, yet maintain strength and performance, and allow puck adjustment with bindings in place. Features a softer version of SPark's new Rip 'N' Flip Highback for easy flex and mobility, as well as more low profile ankle and toe straps. Long tours, epic over-nighters, trees, steeps - these bindings can do it all. Incredibly lightweight - only 675 grams per binding (10% lighter than the Magneto). Includes Tesla touring brackets, Tesla T1 heel rests, and Spark Pocket Tool. One Climbing Wire: T1 stands for OneWire. Because that's all you need. A single fatty wire built into the baseplate switches easily from stowed, to low (12 deg), to high (18 deg) climbing positions and back again while touring.