Skip to content

Your cart is empty

Continue shopping

Have an account?

Log in to check out faster.

Your cart

Loading...

Order special instructions

Estimated total

£0.00 GBP

Taxes included. Discounts and shipping calculated at checkout.

-- Free UK Shipping --

  • Shop
    • FEATURED
      • Best Sellers
      • New Arrivals
      • Sports Collections
      • Multi-Packs
    • PRODUCTS
      • Underwear
      • Loungewear
      • Base Layers
      • Full Length
      • Jocks and Liners
      • Running Shorts
      • Clothing
    • FABRIC
      • TENCEL™ Modal
      • IONIC+™ Anti-Stink
  • Purpose
    • EVERYDAY
      • Classics
      • Classic W/ Fly
      • Loungewear
      • Tops
    • ACTIVE
      • Football
      • Rugby
      • Cricket
      • Tennis
      • Golf
      • Running
      • Base Layer
      • Cycling
    • CLOTHING
      • Loungewear
      • Tops
      • 2n1 Shorts
  • Underwear
    • Trunk / Hipsters
      • Classics
      • Classics W/ Fly
      • Classic Trunk 3-Packs
      • Classic Trunk 2-Packs
    • Boxer Brief
      • Classics
      • Classics W/Fly
      • Classic Boxer Brief 3-Pack
      • Classic Boxer Brief 2-Pack
      • Active Range
    • Full-Length
      • Classics
    • Jocks and Liners
      • Bike Chamois
      • Sport Jock
      • Hockey Jock
  • On Sale
  • Sustainability
Log in

Country/region

  • Guernsey GBP £
  • Jersey GBP £
  • United Kingdom GBP £
    BN3TH.co.uk
    • Shop
      • FEATURED
        • Best Sellers
        • New Arrivals
        • Sports Collections
        • Multi-Packs
      • PRODUCTS
        • Underwear
        • Loungewear
        • Base Layers
        • Full Length
        • Jocks and Liners
        • Running Shorts
        • Clothing
      • FABRIC
        • TENCEL™ Modal
        • IONIC+™ Anti-Stink
    • Purpose
      • EVERYDAY
        • Classics
        • Classic W/ Fly
        • Loungewear
        • Tops
      • ACTIVE
        • Football
        • Rugby
        • Cricket
        • Tennis
        • Golf
        • Running
        • Base Layer
        • Cycling
      • CLOTHING
        • Loungewear
        • Tops
        • 2n1 Shorts
    • Underwear
      • Trunk / Hipsters
        • Classics
        • Classics W/ Fly
        • Classic Trunk 3-Packs
        • Classic Trunk 2-Packs
      • Boxer Brief
        • Classics
        • Classics W/Fly
        • Classic Boxer Brief 3-Pack
        • Classic Boxer Brief 2-Pack
        • Active Range
      • Full-Length
        • Classics
      • Jocks and Liners
        • Bike Chamois
        • Sport Jock
        • Hockey Jock
    • On Sale
    • Sustainability

    Country/region

    • Guernsey GBP £
    • Jersey GBP £
    • United Kingdom GBP £
    Log in Cart

    Filter:

    Availability
    0 selected
    Reset
    Availability
    Price
    The highest price is £79.99 Reset
    £
    £
    Remove all

    22 products

    Filter and sort Filter

    Filter and sort

    Filter

    22 products

    Availability
    Clear
    Price

    The highest price is £79.99

    £
    £
    Clear
    Remove all
    Remove all

    22 products

    • Classic Essentials Boxer Brief Black/Heather Grey 2 Packfrom BN3TH Underwear Classic Essentials Boxer Brief Black/Heather Grey 2 Packfrom BN3TH Underwear

      Classic Essentials Boxer Brief : Black/Heather Grey 2 Pack

      Classic Essentials Boxer Brief : Black/Heather Grey 2 Pack

      Regular price £39.99
      Regular price Sale price £39.99
    • Classic Essentials Boxer Brief: Dusty/Midnight/Heather Gray 3 Pack Classic Essentials Boxer Brief: Dusty/Midnight/Heather Gray 3 Pack

      Classic Essentials Boxer Brief: Dusty/Midnight/Heather Gray 3 Pack

      Classic Essentials Boxer Brief: Dusty/Midnight/Heather Gray 3 Pack

      Regular price £59.99
      Regular price Sale price £59.99
    • Pro Flex Boxer Brief: Recovery Blue Pro Flex Boxer Brief: Recovery Blue

      Pro Flex Boxer Brief: Recovery Blue

      Pro Flex Boxer Brief: Recovery Blue

      Regular price £21.99
      Regular price Sale price £21.99
    • Pro Flex Trunk: Black Pro Flex Trunk: Black

      Pro Flex Trunk: Black

      Pro Flex Trunk: Black

      Regular price £21.99
      Regular price Sale price £21.99
    • Pro Flex Boxer Brief: Black 3 Pack Pro Flex Boxer Brief: Black 3 Pack

      Pro Flex Boxer Brief: Black 3 Pack

      Pro Flex Boxer Brief: Black 3 Pack

      Regular price £59.99
      Regular price Sale price £59.99
    • ENTOURAGE BOXER BRIEF: BLACK ENTOURAGE BOXER BRIEF: BLACK

      ENTOURAGE BOXER BRIEF: BLACK

      ENTOURAGE BOXER BRIEF: BLACK

      Regular price £34.99
      Regular price £0.00 Sale price £34.99
    • Classic Icon Boxer Brief: Black 2 Pack Classic Icon Boxer Brief: Black 2 Pack

      Classic Icon Boxer Brief: Black 2 Pack

      Classic Icon Boxer Brief: Black 2 Pack

      Regular price £54.99
      Regular price £0.00 Sale price £54.99
    • Classic Icon Boxer Brief: Navy 3 Pack Classic Icon Boxer Brief: Navy 3 Pack

      Classic Icon Boxer Brief: Navy 3 Pack

      Classic Icon Boxer Brief: Navy 3 Pack

      Regular price £79.99
      Regular price £0.00 Sale price £79.99
    • CLASSIC ICON TRUNK WITH FLY: BLACK CLASSIC ICON TRUNK WITH FLY: BLACK

      CLASSIC ICON TRUNK WITH FLY: BLACK

      Sale

      CLASSIC ICON TRUNK WITH FLY: BLACK

      Regular price £20.99
      Regular price £29.99 Sale price £20.99
      Sale
    • CLASSIC ICON BRIEF WITH FLY: BLACK CLASSIC ICON BRIEF WITH FLY: BLACK

      CLASSIC ICON BRIEF WITH FLY: BLACK

      CLASSIC ICON BRIEF WITH FLY: BLACK

      Regular price £29.99
      Regular price £0.00 Sale price £29.99
    • ENTOURAGE BOXER BRIEF: FOG ENTOURAGE BOXER BRIEF: FOG

      ENTOURAGE BOXER BRIEF: FOG

      ENTOURAGE BOXER BRIEF: FOG

      Regular price £34.99
      Regular price £0.00 Sale price £34.99
    • CLASSIC ICON TRUNK: BLACK 2 PACK CLASSIC ICON TRUNK: BLACK 2 PACK

      CLASSIC ICON TRUNK: BLACK 2 PACK

      CLASSIC ICON TRUNK: BLACK 2 PACK

      Regular price £54.99
      Regular price £0.00 Sale price £54.99
    • CLASSIC ICON TRUNK: BLACK/NAVY 2 PACK CLASSIC ICON TRUNK: BLACK/NAVY 2 PACK

      CLASSIC ICON TRUNK: BLACK/NAVY 2 PACK

      CLASSIC ICON TRUNK: BLACK/NAVY 2 PACK

      Regular price £54.99
      Regular price £0.00 Sale price £54.99
    • CLASSIC ICON TRUNK: BLACK CLASSIC ICON TRUNK: BLACK

      CLASSIC ICON TRUNK: BLACK

      CLASSIC ICON TRUNK: BLACK

      Regular price £29.99
      Regular price £0.00 Sale price £29.99
    • CLASSIC ICON BOXER BRIEF : HOME FOR THE HOLIDAYS 3 PACK CLASSIC ICON BOXER BRIEF : HOME FOR THE HOLIDAYS 3 PACK

      CLASSIC ICON BOXER BRIEF : HOME FOR THE HOLIDAYS 3 PACK

      Sale

      CLASSIC ICON BOXER BRIEF : HOME FOR THE HOLIDAYS 3 PACK

      Regular price £55.99
      Regular price £79.99 Sale price £55.99
      Sale
    • INFINITE IONIC+™ BOXER BRIEF: DEEP WATER INFINITE IONIC+™ BOXER BRIEF: DEEP WATER

      INFINITE IONIC+™ BOXER BRIEF: DEEP WATER

      INFINITE IONIC+™ BOXER BRIEF: DEEP WATER

      Regular price £34.99
      Regular price £0.00 Sale price £34.99
    • 1
    • 2

    Navigation

    • Contact
    • Returns & Exchanges
    • Retailers
    • Sizing Chart
    • FaQ

    Our Story

    • 100% Satisfaction Guarantee
    • Wholesale

    Policies and More

    • Privacy Policy
    • Terms of Use
    • Patent Information

    Subscribe and save 25% off your order.

    Country/region

    • Guernsey GBP £
    • Jersey GBP £
    • United Kingdom GBP £
    Payment methods
    • American Express
    • Apple Pay
    • Diners Club
    • Discover
    • Google Pay
    • Maestro
    • Mastercard
    • Shop Pay
    • Union Pay
    • Visa
    © 2025, BN3TH.co.uk Powered by Shopify
    • Choosing a selection results in a full page refresh.
    • Opens in a new window.