Polaris Quantum Jacket

The Polaris Quantum is a substantially constructed and feature-loaded jacket that doesn't just come in very, very, very fluoro yellow.

In fact its extensive reflective detail and piping on the front, back and sides means that the not-quite-so-bright orange or even initially-stealthy black options stand out in car lights too, so you only need to wear the uniform fluoro if you want to.

The fit is relatively snug compared to more general use all-rounder jackets.

In other words, it's a lot more cycling-specific than some, with a high front, long sleeves with Velcro straps and an obviously dropped back that contains a zip pocket with a storm flap. If you're determined enough this could double up as a stuff-sack for the whole jacket but it's a tight fit. The only other pocket is a vertically zipped one on the left breast.

There are long zips under each arm to assist the mesh lined Hydrovent fabric, a good thing as after a few fairly rapid outings we'd say the fabric itself is less obviously breathable than some of the more costly fabrics, for example Gore Windstopper.

On the positive side, it's more obviously waterproof than some more breathable fabrics and the double layer construction means it's a lot warmer than some single layer jackets on very cold days. First impressions are that the Quantum doesn't leak at all.

The extra mesh inner lining helps to trap body heat and helps to avoid the clammy feeling you get from some single layer jackets when you put them back on after a stop.

We like the roll-up adjustable hood and the underarm zips have certainly been useful on showery but mild rides as the snug fit and mesh lining soon allows heat to build.

The heat build factor effectively makes it a great winter conditions top rather than a pack-away option for spring/summer/autumn showers, unless you have the cold blooded constitution of a lizard, in which case it'll serve you well for the whole year.

We've cool washed it in a machine three times so far. Thirty degrees is recommended; much hotter and you'll compromise both its waterproof and its breathable qualities.

Verdict

Very waterproof and very bright, but other colours available. Only moderately breathable but warm enough for deep winter. A bit too warm for other times. Not bad value.