










5-PACK I CORE ESSENTIALS
Certified organic cotton (OCS)
We support sustainable cotton farming (BCI)
Description
ALPINE WHITE, HORIZON BLUE, MIDNIGHT NAVY, OXFORD STRIPE & ROYAL PINSTRIPE
Wide boxers, done properly.
Designed in Amsterdam, Son of John boxers are crafted from premium two-ply 100s yarn, spun from 100% cotton. The result is a fabric that feels exceptionally soft from day one, yet is built to last—wear after wear, wash after wash.
The wide fit is intentional: breathable, unrestricted, and comfortable in every situation. No pinching, no riding up, no compromises. Even the details are considered—our signature label sits on the outside only, so nothing ever irritates your skin.
Each pair arrives in a matching Son of John cotton bag, made from the same premium fabric and completely plastic-free. Thoughtful, reusable, and designed to last—just like the boxers inside.
This is everyday underwear, elevated.
Made once. Worn for years.
- Designed in Amsterdam.
- Two-ply 100s yarn, 100% cotton, softer than your softest dreams.
- 2-year warranty.
- No tag where it itches.
- Complementary SoJ label on the back of the boxer.
- Comes in matching SoJ bag made from 100% cotton, 0% plastic.
- Quality that might just outlive you.
Free shipping on orders of €100,- or more boxers, available only to customers in the Netherlands, Belgium, and Germany.
We ship our boxershorts from Amsterdam to customers worldwide. All orders are processed within 1-3 business days, and you will receive a tracking number via email once your order has shipped. Please allow additional time for delivery based on your location.
See the shipping policy for more information.











why Son of John boxer are simply the best.
Why this fabric makes the difference
and why you will feel the difference.

Lightweight and breathable
Thin fabric. Stays cool. Dries faster.

Longer lifespan
Stronger fibers. 2-year warranty.

Refined and silky touch
2/100s shirting fabric vs standard 1/40s.
The other features.

Better for your health
Multiple studies have shown that wearing loose-fitting underwear, like SoJ boxershorts, supports male reproductive health. A landmark 2018 study from the Harvard T.H. Chan School of Public Health found that men who regularly wore boxers had 25% higher sperm concentrations and 17% higher total sperm counts than those who wore tighter underwear.

No itchy tag
We have removed all annoying inside tags, ensuring ultimate comfort without the itch.

Unique Design
Each boxershort features a thoughtfully chosen label, perfectly complementing its design. Besides this, your boxers come protected in a matching bag. This bag is reusable and made from 0% plastic.
Let customers speak for us
Frequently asked questions
Yes, we ship to most countries worldwide. If your location isn’t listed at checkout, drop us a message through the contact page - we’re happy to help. Please note that shipping times and fees may vary depending on where you live.
Our boxershorts are made from 100% cotton, similar to premium dress shirts. The cotton used is one of the best on the markets, making them comfortable and everlasting. Besides this, they are made under fair labor conditions.
It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.
Yes, they are. There has been much research and wide boxers have been proven to increase sperm count. You can find one of the supporting Harvard studies here.



