Apex III Longer Boxer Brief

$ 32.00
Anti-radiation Faraday Shield to safeguard your testosterone and fertility
Patented Paradise Pocket Gen III ball pouch
Eco-friendly EcoSilver fabric for incredible performance
Spacesuit-grade anti-odor technology
Advanced Power Grip system - no ride up


Size Guide

We’ll help you find the right size


What pants size do you wear?

Based on your selections, we recommend

XS Standard Fit

We’ll help you find the right size


What pants size do you wear?

Based on your selections, we recommend

XS Standard Fit

List of all product categories:

1. Underwear - all underwear ranges (Elite II, Paradise Pocket, Tactical II, Endurance, Classic), fits (Standard, Athletic, Longer), styles (boxer brief, trunk, brief, boxer) and fabrics (Re:Luxe, Compression, Luxe) are considered the same product category.

Intimate items such as underwear and socks cannot be resold once worn due to hygiene and health code policies. Because of this, we can only process a refund for 1 pair of underwear and socks that have been taken out of their packaging only if you order 1 pair. But don't worry, we have a very accurate fit guide that usually gets it right the first time. When ordering 2 or more pairs, neither gets a free return or exchange.

2. Performance Dress shirt and the Performance Short Sleeve Button Up in all styles, fits and fabrics are considered the same product line

3. Essential V Neck and Crew Neck in all styles, fits and fabrics are considered the same product line

4. AirWeight undershirt - High V and Deep V are considered the same product line

5. All socks in any fit or style are considered the same product category

6. Contender Training Shorts and Heavyweight Training Shorts are considered the same product line

7. The Limitless Performance Chino

First time customer? Order 1 unit in a product category and get free return / exchange.
Order 2 or more units, no free return / exchange and deductions will apply.
Fewer returns = lower costs for us = lower prices for you. Read more about our sustainable return policy here

Apex III Longer Boxer Brief - XS / Gotham (Black) Available for pre-order. Ships Mid December. Reserve it now to get first dibs!

Product Description

The most technologically advanced underwear ever built. The Apex III Series features the updated Paradise Pocket Gen III ball pouch that's built with spacesuit-grade materials and category-leading tech for an incredibly comfortable wear. 

First, we reinvented the Paradise Pocket with the updated Gen III design - it's even easier to put on and you'll never fall out of the ball pouch, so the twins will never stick to your thighs again. No more awkward sumo squat, elongated side step or bat wings (sorry for the visual) - just life-changing comfort and adjustment-free days.

The silver fabric used in the Paradise Pocket Gen III has incredible anti-odor properties and permanent anti-odor control. The silver in the fabric kills 99.9% of odor-causing bacterial so you can travel light and extend the time between washes while your genitals stay fresh.

The Paradise Pocket Gin III's fabric is also anti-radiation - by using it to form the Pocket, it creates an anti-radiation Faraday Shield to protect your "boys" from harmful, sperm-killing electromagnetic waves emitted from electronic devices - it's the same fabric tech used in spacesuits. The 3D pocket design blocks electromagnetic waves from your majesticles from all angles - phone in pocket, laptop on lap, wifi router nearby - all blocked with full protection from any direction.

The rest of the Apex III underwear is made with our EcoSilver performance fabric that is designed to deliver peak performance with a lower environmental footprint. We spent over a year developing a custom recycled, premium-grade yarn that maintains the same performance features and ultra soft feel you’ve come to know and love.

Then, to push fabric innovation further, we combined the recycled yarns with metallic silver to give you extraordinary next-to-skin comfort and the very best odor protection. Silver is the most effective material for neutralizing odor-causing bacteria and is advanced enough to be used in spacesuits to keep astronauts fresh.

Apex III is engineered with 15+ smart features, including Power Grip, laser-cut wide leg grippers lined with soft silicone for incredible hold. The legs will never ride up or bunch, so no more awkwardly tugging your pants to pull the legs down. The Power Grip is also stays hidden, even under tighter pants, so no more visible underwear lines either.


Free US Shipping when you order $50 or more

Weekender: 3 pairs for $90
Weekday Warrior: 5 pairs for $145
Comfort All Week: 7 pairs for $189

The Weekday Warrior and Comfort All Week packs are eligible for the Drawer Refresh Upgrade


*Discounts automatically apply in cart

Garment Care

All of our garments are easy care: wash on cold and hang to dry - that's it
Do not iron
Do not dry clean 
Do not bleach

So easy, you won't need to call mom for help. 
She'll be so proud.


81% recycled polyester, 8% silver, 10% spandex for a lower environmental footprint. Each pair of underwear diverts 2 plastic bottles from landfills, oceans and incinerators and reduces our reliance on fossil fuels.

Apex III Longer Boxer Brief

$ 32.00
Buy More, Save More
We save on shipping, you save on product - it's a win-win.
U.S. shipping is on the house when you order $50 or more (excl. HI, AK)
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Customer Reviews

Based on 18 reviews

I really like these but they are falling apart after just a few months. Not worth if if they don’t last.

Dylan H. (United States)
First impressions are great

They are so soft and very supportive without being tight l, they look and feel great! The horizontal fly works very well and it is true, absolutely no ride up!!

Andy M. (United Kingdom)
Walking tour of Istanbaul

Walking the sights of Istanbul in 30-35°c was a breeze. What would normally have been a hot and chaffy was very comfortable. Highly recommend AC’s boxers.

Faraday Shield Paradise Pocket safeguards your testosterone and fertility from radiation emitted from phones, laptops and wifi routers
Eco-friendly high-performance fabric surrounds you in a comfortable microclimate that manages sweat and keeps odor at bay
Manages sweat for all-activity and all-weather comfort
Keeps you comfortably dry all day. Pack light and do laundry anywhere.
Spacesuit-grade anti-odor tech
Long day? This fabric keeps you from smelling like it. Powered by the same tech used in spacesuits
360° stretch
Ease of movement in any direction for any activity (yes, even lounging)
Made for hours of cool comfort no matter the temperature
Euphoria-grade softness
And it gets softer with every wash
The lightweight antidote to humidity and summer
Built to bring you years of comfort
Better color retention
Looks as good as new and won’t fade for years
Run, bike, hike, explore — designed for running but built for anything and everything
Daily wear
Hot summer days
Separating your nuggets from your thighs
All climates
The rodeo (of life)

Breeze through your day in
comfortable, adjustment-free underwear


made with
spacesuit-grade tech