It’s been described as “so warm it’s like wearing a duvet”, as well as “your true winter MVP”.

And this week, the hugely popular “Wunder Puff” range by lululemon is back.

Essentially an extremely lightweight down puffer jacket, the “Wunderpuff” jacket promises to keep you looking stylish as well as feeling warm all winter long.

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It’s so popular that global shoppers describe it as the “one thing you need” when the weather gets cold.

Ahead of this winter, lululemon Australia has released a number of new “Wunder Puff” styles — including the best-selling jacket in new shades, a vest, cropped vest and cropped jacket.

But it’s the jacket that’s catching my eye the most right now.

Available in pink, cream, brown and black, the $369 down puffer jacket has a cinchable waist and hem that lets you customise the shape and keep out cold drafts.

Those who own the jacket love that it has a removable hood, as well as zippered hand pockets with a hidden phone sleeve, interior pockets and close-fitting interior cuffs that help hold in heat.

The jacket’s relaxed fit feels roomy and can be worn over larger layers.

Alternatively, you can size down if you prefer a slimmer fit.

Reviews online are glowing for the “Wunder Puff” jacket, with shoppers leaving hundreds of glowing write-ups.

“Love this jacket. Recently wore it in very wet and cold conditions for an outdoor day/night event,” one shopper wrote.

“Kept me warm and dry. Would recommend. I’m a size 4 but bought the size 2 as jacket is so warm, I have no need to layer under it.”

Another added: “Love this jacket! So warm and cosy to wear even on the coldest days.

“Especially the draw string cord to make the jacket a little more fitted around the waistline. I purchased this jacket in size 12 US/16 AUS for the winter mornings spent watching my kids playing sport.”

While a third said: “Great lightweight warm jacket.

“I was sceptical about buying this, but I am so glad I did.

“It is a great length, lightweight, warm, and has an amazing hood for Melbourne winters!”

I also have my eye on the “Wunder Puff” Cropped Vest ($279), which is also available in a number of flattering colours and boasts many of the same features of the jacket in a puffer vest format.

And I love the wear-everywhere “Trench” colour, which would look as good thrown over activewear as it would paired with jeans and boots.

Reviews are also highly positive for this piece.

One shopper wrote: “So warm and flattering at the same time! Love love love”.

While another added: “Winter wardrobe staple. I am absolutely obsessed with this puffer vest. It is the perfect fit and so warm!”

For more information and to shop the “Wunder Puff” range, head here now.