Alf puts the high-tech and very lightweight Uranostind mid-layer from Bergans on test in his latest gear review.

PRICE: £160

WEBSITE: Bergans of Norway

WHAT THEY SAY: "Very lightweight jacket in heat-insulating PrimaLoft® Gold Insulation. Designed as a reinforcement garment for use as a resting jacket on ski touring, or underneath a shell jacket on cold days. The PrimaLoft® Gold Insulation keeps you warm even when it is wet. Uranostind is part of Bergans’ Slingsby range, which consists of ski touring and mountaineering products in which superior functionality, low weight and premium durability are perfectly balanced. Slingsby provides exactly what's needed with nothing surplus to requirements!"

WHAT ALF SAYS: This very lightweight (365g) mid-layer utilises PrimaLoft Gold Insulation to keep you surprisingly warm, along with a windproof and water-repellent Pertex Microlight shell fabric.

This makes it ideal as a mid-layer on cold days, and as an outer layer on warmer days or when resting. Its low weight and minimal bulk mean that you scarcely notice it when in your pack, but you’ll definitely notice how it warms you instantly when you slip it on.

The Uranostind doesn’t have a hood (something I generally think is superfluous in mid-layers as they tend to become rucked up when wearing a shell over the top, and if it’s warm enough to wear the jacket on its own you’re not likely to require a hood); it does, however, have an excellent extra high, snug-fitting collar with a one-hand drawstring – this was my favourite feature of the jacket.

You can obtain ventilation via the front two-way zip, and there are two zipped front pockets - the jacket can be folded into one of these in order to achieve minimum packing volume.

Additional features include an extended back for more warmth (and the lady's jacket features extra insulation on the chest panel), articulated elbows for increased freedom of movement and elastic cuffs and hem. And as an indication of how much thought Bergans has put into the Uranostind, you even get a patch, with instructions, that can be used if you rip or tear it.

In short, the Uranostind is the kind of jacket you didn’t know you needed – then once you get one it becomes the kind of jacket you can’t live without.

FOR: Versatile, light, warm and good looking

AGAINST: Nothing

Alf Alderson is an award-winning freelance ski journalist who will be working on gear reviews throughout the 2016/17 season for the Ski Club of Great Britain.