Arc Jet compasses are perfect for the orientator, adventure racing lovers and those who need a fast and stable needle. With it you will get quick navigation while running and a feeling of holding a high-end compass. The Silva Jet 2.0 needle provides the highest performance in needle speed and settling time, while offering exceptional reliability and stability. The Arc Jet S comes with the Spectra system in limbo. This time the color system has been replaced (for gray tones) and the numbering has been added from 1 to 12 (like time stamps) making it much easier to remember the reference number. The base and capsule are made of a very durable material, which will withstand shock and the most extreme conditions. At the bottom of the base, we can find small rubber suction cups, to improve friction with the map. As for the position of the thumb, the option (if the user wishes) of mounting a small base has been added, so that the finger rests on it. This piece can be fixed or removed, depending on your preferences. The design brings even more transparency than its predecessor, increasing the visibility of the map. The thumb elastic is easy to adjust and makes the compass fit perfectly (includes 2 different "hardness" elastics). The Arc Jet series by Silva, is your series if what you are looking for is the TOP range of the brand, the most advanced and high-performance that exists on the market. It has stickers with scales 1:4000 / 1:7.500 / 1:10.000 and 1:15.000 that can be put and changed at will.