Arc Jet S Thumb Compass by SILVA – Left hand

🧭 Silva ARC Jet S — Left-Hand Thumb Compass (Southern Hemisphere)

Elite-grade speed. Absolute precision. Built for Australian conditions.

When every second and every bearing counts, the Silva ARC Jet S delivers. This is Silva’s most advanced thumb compass platform, designed for high-speed orienteering, rogaining, trail racing and expedition navigation — combining the revolutionary Jet 2.0 needle with the intuitive Spectra Speed Dial system for world-class performance in speed, stability and readability.

Balanced for the Southern Hemisphere and configured for left-hand use, this is the choice of elite competitors and serious navigators who refuse compromise.

🚀 Why ARC Jet S is the Gold Standard

This compass isn’t just fast — it’s surgically precise.

• Jet 2.0 Needle Technology — unmatched needle speed and ultra-stable settling, even when running, riding or turning sharply

• Spectra Speed Dial — numbered capsule graphics let you lock in a bearing visually and follow it without hesitation

• Extreme Clarity — transparent capsule and clean reference lines keep your map visible at all times

• Southern Hemisphere Balanced — tuned for Australia & New Zealand so the needle stays flat and accurate

• Left-Hand Configuration — designed to sit perfectly on your left thumb while your right hand handles the map

This is the compass trusted by Tove Alexandersson, one of the greatest orienteers in the world — and it shows in every detail.

🎯 Spectra Speed Dial – Navigate at Race Pace

The Spectra System transforms how you take and follow bearings.

Instead of constantly re-checking the needle, you:

1. Set your bearing using the Silva 1-2-3 method

2. Memorise the number the needle points to on the Spectra dial

3. Follow that number — the sighting line keeps you locked on target

As long as the needle stays on that number, you’re moving in exactly the right direction — even at full running speed.

🖐️ Ergonomic Thumb Design

Silva’s ARC baseplate is engineered for control and speed.

• Map Contact Cut-Out — your thumb touches the map directly for perfect feel and micro-adjustments

• Attachable Thumb Plate — click it on for classic thumb compass feel, remove it for ultra-low profile racing

• Arc Wing Support — gives extra stability when pushing hard through terrain

Two rubberised thumb bands (soft and firm) are included so you can tune the feel to your preference — secure, comfortable and slip-free.

📏 Integrated Distance Measuring

The ARC Jet S includes four removable scale stickers that attach directly to the baseplate:

• 1:15,000

• 1:10,000

• 1:7,500

• 1:4,000

Measure distances directly on your map without stopping — perfect for race planning, route choice and attack point timing.

🛠️ Built for Tough Terrain

This is not a delicate instrument.

• Rubber friction feet grip the map in wet or dry conditions

• High-impact materials withstand falls, scrapes and brutal outdoor use

• Ultra-lightweight at just 26 g, so it disappears on your hand

Designed for forest, desert, alpine and outback navigation — exactly what Australian terrain demands.

📐 Specifications

🧭 Southern Hemisphere Accuracy — Guaranteed

All compasses we supply are MS (Magnetic South) models, specifically balanced for Australia and New Zealand.
This ensures the needle stays level, stable and accurate — something Northern Hemisphere compasses cannot do reliably here.

🚚 Free Australia-Wide Delivery

Your Silva ARC Jet S ships free anywhere in Australia, ready to race, train or explore straight out of the box.

🏁 The Choice of Champions

Fast. Stable. Incredibly precise.

The Silva ARC Jet S Left-Hand Thumb Compass is built for those who navigate at speed — and demand absolute accuracy every step of the way.

Add it to your kit and experience world-class navigation.