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Plunder Down Under Men's Trunk
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Our best-selling style is the perfect all-rounder!-
Anti-chafe and superior moisture wicking.
-
Perfect for casual to high activity.
Our best-selling style is the perfect all-rounder!Choose Size: ${ chosen_size_abbreviated }
Knobby Undie Club members save 15% on most products. Discount will automatically be applied once the item is added to your bag. To add another subscription, head over to your member portal.
Same day dispatch if you order before 1pm AEST
- Ultra soft pin-hole BottleBlend® fabric
- Made from up to five plastic bottles
- 4cm band with plush inner microfleece
- Lightweight 160 gsm for versatility and comfort
- 88% Recycled Poly 12% Spandex
- Tagless with printed care label
- Made ethically and sustainably in China
- THE STYLE: This best-selling style is the perfect all-rounder! Created from BottleBlend®, our very own recycled material, containing up to five plastic bottles. Flatlock seams for comfort and an inseam length of 15cm to reduce ride-up and eliminate cheeky chafe.
- THE FIT: Each of our undies are made to a global standard. They are true-to-size, so order whatever size you would typically order for shorts. See our size guide.
- THE MODEL: ${ chosen_product_model_description }
Each pair of Knobbys will arrive in a custom designed, certified kraft paper package or a sealed paper pouch and postage bag made with cornstarch, which is 100% compostable!
All our Australian printed papers and cardboards are recyclable, FSC certified and made carbon neutral, because we give a shit.
Our mission is to be the most sustainable underwear brand in the world.
FREE Standard Domestic Shipping for orders over $100
$9.50 Standard Domestic Shipping for orders under $100
Order before 1pm AEST on weekdays and we'll dispatch the same day!
Returns
Get in touch with our Support Ninjas within 30 days of receiving your Knobbys if you'd like to organise an exchange, refund, coupon or credit! More details
Unique
Designs
Unbeatable
Comfort
Sustainably
Made
Bought the monthly subscription for my partner. He was super happy and excited to get new ones every month. He wouldn't normally go for pattern briefs but loved the designs. True to size, good fit and super comfy!
100% best underwear for men. Changed over from (another brand) and I am not going back. Softer material, better fit and awesome designs.
It doesn't matter if you are 25 or 65 years old we all need the most comfortable underwear. Knobby tick the boxes for comfort ball room coolness. The stretch fabric allows movement no chaffing or sweating. Best ever!
Step into a world of amazing underneaths that are ridiculously good and sustainably comfy
Exclusive Unique Design
Batten down the hatches! A rowdy crew of sea rogues, led by a salty kraken, drifts through the waves, pilfering and plundering treasure from unsuspecting pirate ships. Once down under, the spoils are divvied up, because the best loot is shared loot!
Comfort & Fit
Experience unmatched comfort with our products:
- Our best-selling style is the perfect all-rounder!
-
Anti-chafe and superior moisture wicking.
-
Perfect for casual to high activity.
We've designed it specifically for a snug fit that's perfect for everyday wear.
Sustainability
In a world striving for sustainability, our products stand out. Made from an innovative eco-friendly bottle blend fabric, they not only offer comfort but also reflect a commitment to a greener planet.
Get The Full Collection
Customer Feedback
Join the Undie Club and save on every order.
A Club with Benefits
Legendary Savings
Save up to $13 per pair and get 15% off storewide!
Free Shipping
Free AU Shipping on every order.
Your Club, Your Rules
Pause, cancel, change size, add styles or adjust the frequency they arrive at any time!
V.I.P Access
V.I.P access to new designs, product releases, and occasional matching goodies!