The Electron has all the ingredients you might ask for in a high-end insulated jacket.

It’s stuffed with 190g of 800 loft hydrophobic goose down. The Pertex Endurance outer fabric is wind and water resistant, and feels hard wearing. The ripstop nylon inner is soft and silky against the skin.

The variable size baffles – with smaller baffles down the sides and under the arms – make for a streamlined fit and reduce dead-space. I found I could comfortably wear three or four layers beneath, and it didn’t feel too bulky with just a single layer on.

The YKK front zipper is solid and runs smoothly thanks to an internal baffle. Two external pockets and an internal breast pocket provide plenty of storage space. The hand pockets have long zips for use while wearing a pack or harness.

The hood is super snug when cinched tight but is surprisingly large and can fit over a helmet. It has elastic drawcords and a velcro tab at the back, making it the most adjustable hood of the jackets reviewed here. It also has a wired peak.

The elastic stretch cuffs produce a decent seal and can be pulled up to elbow height without getting distended.

While the jacket packs away nicely in the provided stuff sack, I prefer a built-in sack as I’m likely to lose such a small item.

I noticed the stitch-through baffles tend to leak a bit of down, but this issue is minor compared with many downies.

The Electron is one of the warmest jackets reviewed here. But at 500g (w: 470g) it is on the heavy side and it’s pricey. However, if you’re looking for a high quality down jacket that’ll do just as well tramping, skiing or mountaineering, and should last several seasons, then it’s an excellent choice.