To test the insulating properties of the garment, we measured the cooling rate of a bladder of warm water placed in the centre of the jacket. We filled plastic bags with 500 millilitres of water at 50ºC and used aquarium thermometers to take in-situ temperature measurements of the water in 15-minute intervals over a two-hour period. Pack size was measured by putting the jackets in a 20cm-diameter stuff sack and compressed with a 5kg weight. The jacket was then weighed with calibrated scales.
This jacket uses Thinsulate 3M synthetic down insulation, achieving great loft, comfort and manoeuvrability. Overall it’s a relatively simple design with two zipped and fully lined handwarmer pockets and one internal pocket. The jacket is well cut with a snug but comfortable collar and plenty of length in the arms so that it doesn’t ride up when casting. The collar also features a micro-fleece chin guard over the zip so that it’s not cold against your skin.
The Wychwood jacket had the best insulation performance. It retained a massive 65.3 per cent of the heat, making it 6.6ºC warmer than the others after the two-hour test period. This makes the jacket 18 per cent more efficient than the next best (taking into account the natural loss of heat as shown by the control). It was a little heaver and bulkier than the other normal length jackets, weighing 888g and packing to 7.7 litres.
PROS Highest insulation performance on test. CONS Slightly heavier and bulkier than most normal length jackets.
Can’t Find it?
Don’t forget – subscribers to the magazine get 5% OFF at Angling Direct. Terms and Conditions apply Subscribe here