There's a difference between Australian mens underwear that's made in Australia and Australian mens underwear that's marketed in Australia. Most blokes don't look closely enough to know which they're buying. If you care about buying locally made gear, it's worth knowing that genuinely made-in-Australia mens underwear is rarer than the number of brands claiming local origins would suggest.
Barramundies is 1 of the genuine ones. Australian mens underwear actually manufactured here, from cotton processed to local standards, sized for Australian bodies. I know a bloke who went through the process of verifying this before he bought. He'd been burned by brands using the Australian identity as a marketing tool without the manufacturing to back it up. When he confirmed Barramundies was the real deal and tried the product, he said the combination of genuine local production and clearly better fit made it the easiest repeat purchase he'd made in years.
What genuinely made Australian mens underwear delivers that the imported versions don't is a product calibrated for the specific bloke wearing it. The sizing accounts for Australian body proportions. The fabric choice reflects Australian weather conditions. The construction is held to a standard that the manufacturer is directly answerable for. None of that happens automatically. It happens because a brand makes deliberate decisions to prioritise it. Barramundies makes those decisions consistently.
If you've been buying Australian mens underwear assuming it's locally made and haven't checked, it might be worth a look. And if you want the version that's unambiguously made right here, Barramundies is the place to start. The product quality makes the case on its own. The local manufacturing is the bonus.