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Why have a Birkin when you can have a bagnum


Read time 4 Mins

Posted 12 Mar 2026

By
Lulu Morris & Kerri Gordon


Pouring a glass of the Tread Softly bagnum in a garden

You like my bag(ged wine)? Thanks, it’s vintage. 

The humble goon sack – it’s not particularly sexy by today’s beauty standards. But for decades, neither was the “man bag”. When Goon King Jacob Elordi sports it, however, it’s relaxed luxury. Elevated off-duty. And yes, immediately and resoundingly sexy.

So, let us introduce you to the glowed-up goon: the bagnum. A 1.5-litre bag of wine made from laminated polymer, lined with aluminium to keep wine fresher, cheaper, more portable and – even better – more sustainable. Essentially, it’s cask wine but chicer, cooler and sans passé box. 

Have you ever tried to shuttle a magnum of wine anywhere? If you haven’t, let us tell you, it’s not the kind of thing you can slip into your back pocket. Hell, it barely fits in a tote bag, performative or not. Meanwhile, bagnums are lighter, come with their own handle and can even double as an accessory. Also, you’ll be way ahead of the curve. Bagnums and “casked wines” are picked to be the next big thing – just ask your sommelier friends. 

We’d be lying if we didn’t say we were hesitant at first. Could they really make bagnum happen? Here’s what sold it to us: even though a bagnum has 1.5L of vino, you won’t be wasting a drop because they last way longer – like, four whole weeks after opening, compared to a few days with a bottle. As we mentioned, there’s less environmental waste, too. Sophie Arneric, Innovation Product Manager at Cupio (one of the producers leading the way) informed us that Astrapouches (the technical name for the bags) have an 80% lower carbon footprint versus the equivalent glass bottle. You can ship 10 Astrapouches for every empty glass bottle, which means that if you factor in a bagnum’s full lifecycle (think manufacturing, transport and delivery) there’s still a 45% reduction in greenhouse gas emissions compared to standard glass bottles. 

Now, where do you get these fashionable bags of wine? No, not Hermes, not Louis Vuitton and not Loewe – from us! Here’s our pick of the drops.

The Cat Amongst the Pigeons Chardonnay bagnum

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1. Cat Amongst the Pigeons Chardonnay

You know what goes well with a chardy? Our other favourite sartorial delicacy, the bachelor’s handbag. For there’s no holier experience than gathering your mates over potato salad, slaw and a ready-to-go roast chook. A simple and delicious midweek feast, the supermarket chook satisfies the mind, body and soul. And what better drop to wash down our magnificent chook than a Cat Amongst the Pigeons Chardonnay Bagnum? A cool-climate wine, this stunner is complex and balanced with layers of bright fruit, aromas of zest and stone fruit, and finished with subtle oak flavours that will mesh harmoniously with your winner-winner-chicken-dinner.
Member Offer
$25 per bottle Non-Member: $26.99 each

2. Tread Softly Pinot Noir

Pizza nights, just like those roast chook nights above, are sacred. Planned, spontaneous or simply because there’s no food left in the fridge – it doesn’t matter as long as there’s pizza. If you’ve got yourself an eclectic group who like to order everything from a classic margherita to whatever ‘barbecue supreme’ is, then you have to get a wine that pairs with it all. Tread Softly Pinot Noir Bagnum is that wine. It’s very shareable, being a 1.5L bagnum, but it’s also super delish, soft in tannins yet structural and smooth. Our rec? Keep it chilled to really activate those flavours (but much like pizza, the choice is yours).
$23.99 each
Tread Softly Pinot Noir bagnum

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A bagnum of the Squealing Pig Rosé

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3. Squealing Pig Rosé Bagnum

The bag to bring to a late brunch, this blend of pinot noir and grenache creates a light, easy-drinking rosé with subtle flavours of strawberry and pink grapefruit. Because let’s face it, Sex and the City-style brunches (with a side of Samantha-esque quips) are long overdue a comeback, and, well, a bagnum will complement any old pair of Manolos. Crisp and refreshing, this rosé is the perfect palate cleanser to the decadent pastries that had you waiting in line for 45 minutes. 
$31.99 each

4. Rewild Shiraz

How about a wine that gives back? Rewild wines are sustainably made and super focused on giving back to the environment. Produced by Duxton Vineyard, the team are actively reducing their water usage and investing in renewable energy, all while supporting initiatives like Saving Our Species. Rewild’s Shiraz bagnum is a beautifully vibrant drop tasting of red fruits, hints of blueberry and vanilla, with an elegant, soft finish. It’s definitely the one to lug to a friendly barbie. Those dark fruit flavours of the shiraz make for the perfect accessory to red meat, resulting in a delicious and sophisticated pairing.
$17.99 each
A bagnum of Rewild Shiraz

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A bagnum of the Running with Bulls Tempranillo

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5. Running with Bulls Tempranillo

Nothing says ‘I Euro summered’ like whipping out a Tinto de Verano on a hot night. A non-touristic alternative to Sangria for Spanish locals, the cocktail blends red wine and lemonade for the ultimate balmy night bev. The Shandy-esque drink goes down a treat, so you’ll want to make sure you’re stocked up. With an easy-pouring spout, the bagnum makes for the ultimate self-serve format – simply pop it on your bench with a bottle of Solo, a bucket of ice, highball glasses and some sliced lemon. With notes of plush dark berries and smooth chocolate, the Barossa-based take on the Spanish wine is a delight to drink – and with a name like Running with Bulls, just one sip and you’ll think you’re in Toledo.
Member Offer
$34 per bottle Non-Member: $36.99 each