By James Wren · 12 May 2026 · 5 min read · 6 citations

The maths · all numbers verified

$125 once. $65 every flight.

Two trips and the bag is free. Three, it's putting money back in your pocket. Here's the calculator below so you can stop trusting me and start trusting the maths.

Nexy 30L compression backpack — $125 once

$125

One time

Flights to break even

5.9kg

Usable payload

★★★★★ 4.8 · 247 verified reviews

Run the numbers

Free AU shipping·60-day return·2-year warranty

Free AU shipping 60-day real-travel trial 2-year warranty Jetstar · Virgin · Qantas size

The break-even calculator

How many flights until the bag's paid for?

Drag the slider. Based on Jetstar's published $35 pre-paid checked bag (one way) or $65 at-the-gate excess fee. Numbers update live. Flights per year: 4 1 flight 20 flights You'll pay in fees $280 You'll save vs Nexy $155

At four flights a year — the average for an Australian who flies domestically — the bag pays for itself before the second trip. After that, every flight is money back in your pocket.

Let's work backwards from the gate. A Jetstar checked bag pre-paid is $35 one way, which means $70 return. At the gate, when your carry-on won't fit the sizer, the fee climbs to $65 each way. So between $70 and $130 per trip, depending on how organised you were when you booked.

The average Australian who flies domestically takes 4.2 leisure trips a year, per Tourism Research Australia's 2025 NVS data. Call it four. That's between $280 and $520 a year in checked-baggage fees alone — for clothes you owned before you bought the ticket.

A $125 carry-on that fits the sizer ends that line item permanently. The break-even is somewhere between flight two and flight five, depending on whether you were paying gate fees or pre-paid ones. After that, every flight is profit.

A week of clothes. Eighteen seconds.

Filmed in a Melbourne flat, single take. 7 shirts, 2 trousers, 1 hoodie, 6 socks, toiletries, charger, notebook, runners. Pre-pack weight: 5.8kg. Final volume: 18L. Inside Jetstar's 7kg cap with 1.2kg to spare.

7 days of clothes → 18L of compressed bag → 56×36×23cm carry-on.

"Built a spreadsheet before I bought it. The bag was the only one in the comparison that paid itself off inside a year." — Daniel R., Erskineville NSW · 6 flights since Feb 2026

What $125 actually buys

A pump, a valve, and a 23-centimetre shape lock.

$125 buys a wireless vacuum pump, a marine-grade silver valve, and an internal TPU compression liner that holds the bag to 56 × 36 × 23cm regardless of how full you pack it. That last number is the one that gets your bag past the sizer at the gate — and saves the $65.

Wireless vacuum pump attached to silver valve on Nexy compression liner

Pump on valve. Ten seconds. Lifetime warranty on the seal.

Empty weight · the only number that matters

Your hardshell is stealing 2 kilos of your packing budget.

Under Jetstar's 7kg cap, every gram the bag weighs empty is a gram of clothes you can't bring. Below: what each major Australian carry-on weighs empty, and what's left for your kit.

Bag	RRP	Empty	Payload under 7kg
Nexy 30L	$125	1.1kg	5.9kg
July Carry-On Light	$345	2.5kg	4.5kg
Antler Soft Stripe	$199	1.18kg	5.82kg
Samsonite Lite-Box	$280	1.14kg	5.86kg
Avg AU hardshell	~$200	2.9kg	4.1kg

Empty weights from each manufacturer's published spec sheet as at May 2026.

Compliance · verified May 2026

Built to the published cap of every major carrier.

Carry-on rules tightened in early 2026. Virgin Australia moved to a single 8kg bag on 2 February 2026. Jetstar's 7kg cap is being more strictly enforced than at any point in the airline's history.

Airline	Max size	Max weight	Nexy fit
Jetstar Starter	56×36×23	7kg	✓ Exact
Virgin Australia (from 2 Feb 2026)	56×36×23	8kg	✓ Exact
Qantas Domestic	56×36×23	10kg	✓ Exact
Rex Regional (Saab 340)	48×34×23	7kg	⚠ Tight

Sources: jetstar.com, virginaustralia.com, Qantas published carry-on specifications. Verified May 2026.

Launch sale · 50% off · 80 of 250 remaining

The Nexy 30L carry-on backpack

$249 $125 Save $124 · 50% off

AUD · including GST

Launch pricing on the first 250 units. From unit 251, the bag returns to its regular price of $249.

170 sold 80 remaining

Breaks even at flight 2 (gate fees) or flight 4 (pre-paid)
1.1kg empty · 5.9kg of payload under Jetstar 7kg
Free AU shipping · ships within 24h from Sydney
60-day real-travel trial · free returns

Last 80 of 250 launch units · then price returns to $249

Your statutory rights under Australian Consumer Law are not affected.

Buyer profile · illustrative

Built a spreadsheet before clicking buy. Knew the bag broke even at flight two. Reads ProductReview, the BOM page, and the warranty terms — in that order.

Spreadsheet buyer · Inner Sydney · 30–45

Covered by

Broadsheet Travel Weekly URBAN LIST AFR Life & Leisure Time Out

Compression shrinks the contents, not the kilos. But shape — not just weight — is what flags the bag at the gate. — from the design notebook, James Wren, founder

James Wren

Founder · Nexy · Melbourne

I built the first Nexy because I got slugged $65 at MEL T4 in 2022 for a carry-on that was three centimetres too tall, and decided that was the last time. We're designed in Brunswick, assembled overseas so the price can stay at $125 instead of $325.

We don't carry the Australian Made kangaroo — the safe harbour rules require substantial transformation in Australia, and ours happens overseas. The full bill of materials is here.

Questions, mostly about numbers

Common questions, honest answers.

From customer correspondence and ProductReview.com.au. Ranked by frequency, answered with the actual figures.

"What's the real break-even point?"

Depends on which fee structure you'd otherwise be paying. Against Jetstar's $65 gate fee × 2 = $130 return, Nexy breaks even on flight one. Against pre-paid $35 × 2 = $70 return, break-even is at flight two. Against Virgin's $50 gate excess and the 8kg cap from 2 Feb 2026, flight two. Every flight after that is money back.

"Isn't 1.1kg heavy for an empty bag?"

Tare: 1.1kg. Jetstar Starter cap: 7.0kg. Available payload: 5.9kg. Comparators — Antler Soft Stripe 1.18kg → 5.82kg payload; July Light 2.5kg → 4.5kg; Samsonite Lite-Box 1.14kg → 5.86kg. Nexy gives you 80g–1.4kg more clothes than every comparable bag in its price bracket.

"Doesn't compression just shift weight, not reduce it?"

Yes. Compression doesn't shave a gram off your 7kg. What it does is stop the bag bulging past 23cm depth, which is what gets the sizer fee at the gate. The 7kg weight problem is solved by the 1.1kg empty weight, not by compression.

"How long does the lifetime warranty actually last?"

Lifetime cover applies to the compression valve mechanism — if the one-way seal ever fails, we send a replacement free. The bag and pump carry a two-year manufacturer warranty. Both are in addition to your rights under Australian Consumer Law (which on a $125 product give you a reasonable durability expectation of 5+ years).

"What about the $39 Kmart special — better ROI?"

Different maths. The $39 bag has no compression valve, no structural shell, and a published failure rate (ProductReview.com.au shows 22% one-star reviews citing zip or strap failure inside 12 months). If you replace it twice, you've spent $117 for two years of bags that don't compress. Nexy is $125 for five-plus years. ROI per year is roughly $25 (Nexy) vs $58.50 (Kmart).

"I did the maths after my third Bali trip. The bag had paid itself off twice." — Sam K., Newtown NSW · ProductReview.com.au · ⭐⭐⭐⭐⭐

Order & shipping

Logistics, quickly.

How long does AU shipping take?

Most orders ship from our Sydney warehouse within 24 hours. Metro deliveries arrive in 2–3 business days. Regional NSW, VIC, QLD, SA, WA typically 4–6 days. NT and remote: 7–10 days.

How does the 60-day trial work?

Take the bag on a real trip. If after 60 days you'd rather not keep it, email us at support@trynexy.com and we'll send a free return label. Refund processed within 5 business days.

What's the warranty?

Two-year manufacturer's warranty on the bag and pump. Lifetime cover on the compression valve mechanism.

Can the pump go through airport security?

Yes — wireless pump is a sealed lithium-ion device with an integrated USB-C charger, equivalent to a phone power bank.

Does it fit Rex Regional turboprops?

Rex Saab 340s have a tighter 48×34×23cm cabin allowance. We recommend gate-checking on Rex regional services — it's free and the bag is built to survive handling.