BN3TH promo code - August 2026
Explore active offers and BN3TH promo codes available in August 2026. Beyond standard codes, you can save by subscribing to the newsletter for a welcome discount and reaching the free shipping threshold on your apparel orders.
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Offer
BN3TH Deals
Free Pair of Underwear on Orders Over $120 AUD
Receive a free pair of BN3TH Classic underwear with any order over $120 AUD. Free gift automatically added to cart at checkout while stocks last
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20%
Offer
BN3TH Deals
20% Off Bundle of Underwear and Swimwear Sets
Save 20% when you bundle BN3TH underwear with matching swimwear sets. Create your own combination of boxer briefs and swim trunks for a coordinated look
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Offer
BN3TH Deals
Buy 3 Get 1 Free on Classic Underwear Multi-Pack
Buy any 3 BN3TH Classic or Pro underwear items and get 1 free. Mix and match across colours and sizes. Free item must be of equal or lesser value
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15%
Offer
BN3TH Deals
15% Off for Students on All Full-Priced Items
Students get 15% off all full-priced BN3TH underwear, swimwear, and activewear. Verify your student status through Student Beans or UNiDAYS to unlock this offer
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Offer
BN3TH Deals
Earn Points on Every Purchase with BN3TH Rewards
Join the BN3TH rewards program and earn points on every underwear and apparel purchase. Redeem points for discounts on future orders and unlock tier-based perks
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10%
Offer
BN3TH Deals
10% Off When You Sign Up for BN3TH Newsletter
Subscribe to the BN3TH newsletter and receive 10% off your next order. Get exclusive access to new product launches and member-only offers
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15%
Offer
BN3TH Deals
15% Off First Order for New Customers
First-time BN3TH shoppers receive 15% off their initial purchase across the entire range of men's underwear and activewear. Excludes gift cards
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20%
Offer
BN3TH Deals
20% Off Your First BN3TH Order
New customers get 20% off their first BN3TH order on all full-priced underwear, swimwear, and loungewear. One-time use for new email subscribers
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$100
Offer
BN3TH Deals
Free Express Shipping on Orders Over $100 AUD
Get free express shipping on BN3TH orders over $100 AUD. Upgrade to express delivery at no extra cost on all underwear and apparel purchases
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$50
Offer
BN3TH Deals
Free Shipping on All Orders Over $50 AUD
Enjoy free standard shipping on all BN3TH orders over $50 AUD within Australia. No code needed, automatically applied at checkout
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10%
Offer
BN3TH Deals
10% Off First App Order on All Collections
Download the BN3TH app and get 10% off your first in-app order across all men's underwear, swimwear, and activewear collections
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50%
Offer
BN3TH Deals
50% Off First 3 Months with BN3TH App Orders
Get 50% off your first 3 months of orders when you shop through the BN3TH app. Available on all underwear and apparel collections for new app users
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15%
Offer
BN3TH Deals
15% Off Outlet Orders on Full-Priced Products
Exclusive 15% off the total order value on full-priced BN3TH products in the outlet section. Excludes clearance items and gift cards
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70%
Offer
BN3TH Deals
Up to 70% Off Clearance Underwear and Swimwear
Shop the BN3TH outlet for up to 70% off clearance underwear, swimwear, and activewear. Limited sizes and styles available while stocks last
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10%
Offer
BN3TH Deals
Extra 10% Off Sale Items
Take an extra 10% off already reduced BN3TH sale items including selected underwear, swimwear, and activewear ranges. Stackable on existing markdowns
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15%
Offer
BN3TH Deals
15% Off Full-Priced Underwear and Apparel
Get an exclusive 15% off all full-priced BN3TH products including MyPak underwear, boxer briefs, and loungewear. Excludes sale and clearance items
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20%
Offer
BN3TH Deals
20% Off All Orders Over $22 AUD
Enjoy 20% off your entire order when you spend $22 AUD or more on BN3TH underwear, swimwear, and activewear. Discount applied with code at checkout
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40%
Offer
BN3TH Deals
Up to 40% Off Selected Men's Underwear Styles
Save up to 40% on selected BN3TH men's underwear styles including Classic, Pro, and Eco lines. No code needed, discount applied at checkout
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