Synthetic underwear had its moment. Moisture-wicking technology, stretch fabrics, bold colours. The marketing was good.

But cotton underwear for men keeps winning. Here's why. It doesn't trap heat. Polyester and nylon are essentially plastic. They don't breathe the way natural fibres do. In Australian heat, that means discomfort you can't ignore.

It doesn't irritate. Skin sensitivities and synthetic fabrics are a well-known combination. Cotton underwear for men sits against skin all day without causing rashes, chafing, or irritation. For blokes with sensitive skin — it's not even a contest.

It washes better. Synthetic fabrics hold onto odour-causing bacteria even after washing. Cotton releases them. That's a fairly important point when you're talking about underwear.

It ages properly. Cotton gets softer with time and washing. Synthetics often go the other way — pilling, snagging, thinning out. Cotton underwear for men that's well-made just keeps getting better.

It doesn't go static. Synthetic fabrics cling. Cotton doesn't. That alone should sell it.

The one exception? High-intensity sport. For gym sessions or long runs, a moisture-wicking blend has merit. But for everyday wear — work, weekends, long days — cotton underwear for men is the clear winner.

Barramundies builds cotton underwear for men that does what cotton is supposed to do. Breathable, durable, and genuinely comfortable. No synthetic shortcuts.