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Some underwear is built purely for comfort. Some is designed for support. Others focus on enhancement. With Fortify, we wanted the whole package.

We took three signature aussieBum innovations.

Wonderjock Pro, EnlargeIt, and our Moisture Management System and engineered them into a single, high-performance fit that supports, enhances, and actually breathes.

The Dual-Pouch System

Look inside Fortify and you’ll see a double-layer construction engineered for a purpose:

• Inner Wonderjock Pro Pouch: Fits close to the body, giving you immediate, secure support and a natural boost.
• Outer EnlargeIt Pouch: Encloses the inner layer, providing extra lift and a bold, defined silhouette.

There’s no complicated setup or picking between the two. You just step in, and both pouches work in tandem to keep everything right where it belongs comfortably.

Breathability Where It Counts

Double-pouch support shouldn't mean extra heat.

We integrated high-airflow mesh directly into the pouch structure, alongside a dedicated ventilation channel to pull heat away.

On the Trunk, we extended this breathable mesh down through the inner leg area keeping you cool and dry whether you're working out or powering through a long workday.

Tech & Fabric Specs

• Body: 90% Nylon, 10% Elastane. Ultra-smooth, lightweight, and built with 4-way stretch to move naturally with your body.
• Panels: 90% Polyester, 10% Elastane Mesh. Placed in high-heat zones to maximise airflow without sacrificing elasticity.
• Finish: Fitted with stay-put leg binding and our classic aussieBum branded waistband.
• Zero-Scratch Comfort: Replaced traditional woven back waist tags with a heat-pressed care label to stop friction and skin irritation completely.

Choose Your Cut

Fortify comes in two styles.

Brief and Trunk so you get the exact coverage you prefer with the same dual-pouch technology underneath.

Support. Lift. Airflow. No compromises.